Perhaps you should try some spelling variations:
communication cohesion » communication collections, communication control, communication cost
based dimensions » based dimension, basic dimensions, based dimensioning
cohesion based » conversion based, collision based, corrosion based
page levels » page level, safe levels, rate levels
wage levels » safe levels, rate levels, damage levels
age levels » safe levels, rate levels, e levels

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication cohesion based dimensions ((age levels) or (((page levels) or (wage levels))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication cohesion based dimensions ((age levels) OR (((page levels) OR (wage levels)))).
• Adding a wildcard symbol may retrieve word variants: communication cohesion based dimensions ((age levels) or (((page levels) or (wage levels))))*.