Perhaps you should try some spelling variations:
"scientific activities" » "scientific activity", "scientific articles"
"scientific societies" » "scientific studies", "science societies"
"specific activities" » "specific activity", "specific antibodies", "specific gravities"

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: (((("scientific societies") OR ((("scientific activities") OR ("specific activities"))))) OR ("scientific society")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"scientific societies\") or (((\"scientific activities\") OR (\"specific activities\"))))) or (\"scientific society\"))".
• Removing quotes may allow a broader search: (((( scientific societies ) or ((( scientific activities ) OR ( specific activities ))))) or ( scientific society )).
• Adding a wildcard symbol may retrieve word variants: (((("scientific societies") or ((("scientific activities") OR ("specific activities"))))) or ("scientific society"))*.