Perhaps you should try some spelling variations:
species interactions » social interactions, social interaction
strategic collection » strategic competition, strategic allocation, strategic reallocation
interactions series » interaction terms, interactions between
collection system » protection system
sector strategic » sector strategies, sector strategy
support species » support services, support policies

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( support species interactions series. ) or ( sector strategic collection system. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( support species interactions series. ) OR ( sector strategic collection system. )).
• Adding a wildcard symbol may retrieve word variants: (( support species interactions series. ) or ( sector strategic collection system. ))*.