We would like to start a systematic literature research, but every time we start searching, there are this error signs:

• The asterisk in your search was ignored. You must use 4 or more characters for a wildcard search. Lengthen the root word to search for all endings.
• The following terms were ignored: ", )
• Quoted phrases not found: "natur* environment*", "natur* scene*", "natur* landscape*", "natur* experienc*", "natur* setting*", "natur* view*", "photograph* of nature", "image* of nature", "picture* of nature", "restorative scene*", "restorative landscape*", "restorative setting*", "restorative view*", "restorative photograph*", "restorative image*", "restorative picture*", "forest view*", "forest photograph*", "forest picture*", "blue scene*", "water*scape", "sea*side", "coast* scene*", "coast* setting*", "coast* view*", "desert scene*", "desert* view*", "natur*[Title/Abstract] AND urban", "[Title/Abstract]) AND city", "[Title/Abstract]) AND", "[Title/Abstract] OR", "[Title/Abstract]) AND (image*[Title/Abstract] OR photograph*[Title/Abstract] OR digital*[Title/Abstract] AND picture*[Title/Abstract] OR presentation*[Title/Abstract] OR representation*[Title/Abstract] OR poster*[Title/Abstract] OR slide*[Title/Abstract] OR virtual*[Title/Abstract] OR", "[Title/Abstract] OR"

Could someone help us to solve this problem? Are there any special adjustments that we have to observe? Thanks a lot!

That’s our exact search term:

• (("natur* environment*"[Title/Abstract] OR "natur* scene*"[Title/Abstract] OR "natur* landscape*"[Title/Abstract] OR "natur* experienc*"[Title/Abstract] OR "natur* setting*"[Title/Abstract] OR "natur* view*"[Title/Abstract] OR "view* natur*"[Title/Abstract] OR "nature exposure*"[Title/Abstract] OR "nature photograph*"[Title/Abstract] OR "photograph* of nature"[Title/Abstract] OR "nature image*"[Title/Abstract] OR "image* of nature"[Title/Abstract] OR "nature picture*"[Title/Abstract] OR "picture* of nature"[Title/Abstract] OR "nature stimul*"[Title/Abstract] OR "digital nature"[Title/Abstract] OR "virtual nature"[Title/Abstract] OR "restorative environment*"[Title/Abstract] OR "restorative scene*"[Title/Abstract] OR "restorative landscape*"[Title/Abstract] OR "restorative setting*"[Title/Abstract] OR "restorative view*"[Title/Abstract] OR "restorative photograph*"[Title/Abstract] OR "restorative image*"[Title/Abstract] OR "restorative picture*"[Title/Abstract] OR "green environment*"[Title/Abstract] OR "green scene*"[Title/Abstract] OR "green landscape*"[Title/Abstract] OR "green*space*"[Title/Abstract] OR "forest environment*"[Title/Abstract] OR "forest scene*"[Title/Abstract] OR "forest experienc*"[Title/Abstract] OR "forest setting*"[Title/Abstract] OR "forest view*"[Title/Abstract] OR "forest photograph*"[Title/Abstract] OR "forest image*"[Title/Abstract] OR "forest picture*"[Title/Abstract] OR "blue environment*"[Title/Abstract] OR "blue scene*"[Title/Abstract] OR "blue*space*"[Title/Abstract] OR "water*scape"[Title/Abstract] OR "sea*side"[Title/Abstract] OR "coast* environment*"[Title/Abstract] OR "coast* scene*"[Title/Abstract] OR "coast* setting*"[Title/Abstract] OR "coast* view*"[Title/Abstract] OR "desert environment*"[Title/Abstract] OR "desert scene*"[Title/Abstract] OR "desert* setting*"[Title/Abstract] OR "desert* view*"[Title/Abstract] OR ("natur*[Title/Abstract] AND urban"[Title/Abstract]) OR built"[Title/Abstract]) AND city"[Title/Abstract]) OR control"[Title/Abstract]) AND "shinrin*yoku"[Title/Abstract] OR "forest bath*"[Title/Abstract]) AND (image*[Title/Abstract] OR photograph*[Title/Abstract] OR digital*[Title/Abstract] AND picture*[Title/Abstract] OR presentation*[Title/Abstract] OR representation*[Title/Abstract] OR poster*[Title/Abstract] OR slide*[Title/Abstract] OR virtual*[Title/Abstract] OR "landscape art*"[Title/Abstract] OR "nature art*"[Title/Abstract] OR artwork*[Title/Abstract] OR painting*[Title/Abstract]))