Perhaps you should try some spelling variations:
"theory and vision library" » "theory and design library", "theory and vision linear", "theory and visual library"
"theory and gson library" » "theory and own library", "theory and town library"
"theory and open library" » "theory and opencv library", "theory and chosen library"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("theory and vision library") OR ((("theory and gson library") OR ("theory and open library")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"theory and vision library\") or (((\"theory and gson library\") OR (\"theory and open library\"))))".
• Removing quotes may allow a broader search: (( theory and vision library ) or ((( theory and gson library ) OR ( theory and open library )))).
• Adding a wildcard symbol may retrieve word variants: (("theory and vision library") or ((("theory and gson library") OR ("theory and open library"))))*.