Dear Khamphone, first consider that my field and major is different from you. But wat comes to my mind, for understanding the relationship between several factor we usually follow correlational methodology after entering your set of data do these analyses: in Analyze/ regression/ linear regression

Also look at this pdf (go to correlation part)

Another suggestion: Google for similar topics( your study) and see what methods they have used, then it is easy to find your path in SPSS.

It was all I could do

Thank you for your suggestion, it was a helpful alternative way