Unfortunately, popular internet search engines do not offer advanced, multi-criteria search for filtered, purely scientific texts. Therefore, using the available search engines, unfortunately, we have to filter the texts of interest to us using specific selection criteria.
I would like to add a few words to this interesting discussion. Unfortunately, only a few, some databases of scientific publications indexing have advanced search options, which are not available in popular internet search engines, social media portals and other websites, which may contain many scientific texts on various issues. However, these are not options for multi-criteria single-step search. Almost every database for the indexation of scientific publications, such as Google Scholar, has a specific search system that allows you to search for publications on specific issues and possibly also taking into account selected several other search criteria. However, unfortunately, each publication search algorithm has a limited number of options and functions, has certain disadvantages, it is not perfect. In addition, there is probably still a universal intelligent search engine that would allow searching for interesting scientific publications published in a specific time range, while also taking into account the issues of specific issues, the type of scientific text and several or more other search determinants. Therefore, the search process is usually carried out in a cascade, multi-stage formula, i.e. the search process is divided into successive stages. At each of these stages, texts that match specific search criteria are searched from the text base remaining from the previous search stage.