Perhaps you should try some spelling variations:
communication creating » communication relating
problems extensions » problems extension, problem extensions, problem extension
creating problems » cheating problems, breathing problems, reading problems
modeling some » modeling soa, modeling space, modeling self

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication creating problems extensions ((modeling some) or (modeling spatial))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication creating problems extensions ((modeling some) OR (modeling spatial)).
• Adding a wildcard symbol may retrieve word variants: communication creating problems extensions ((modeling some) or (modeling spatial))*.