Perhaps you should try some spelling variations:
communication forms » communications forms, communication norms, communication format
euclidean spaces » euclidean space
euclidean dspace » euclidean space, euclidean distance, euclidean state
based dimension » based dispersion, basic dimensions, based extension
forms based » form based, farms based, foams based

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: communication forms based dimension ((euclidean spaces) OR (euclidean dspace))~.
• Adding a wildcard symbol may retrieve word variants: communication forms based dimension ((euclidean spaces) or (euclidean dspace))*.