Perhaps you should try some spelling variations:
communications conversion » communications convention, communication conversation, communications conclusion
conversion coast » conversion chart, conversion fast, conversion case
david resolving » dates resolving, data resolving, design resolving
coast decision » cost decision, coast division, post decision
data moving » data proving, data mining, data making

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

• Performing a fuzzy search may retrieve terms with similar spellings: communications conversion coast decision ((david resolving) or (data moving))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications conversion coast decision ((david resolving) OR (data moving)).
• Adding a wildcard symbol may retrieve word variants: communications conversion coast decision ((david resolving) or (data moving))*.