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

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