Perhaps you should try some spelling variations:
communications conversion » communications convention, communication conversation, communications conclusion
conversion fast » conversion based, conversion chart, conversion from
david resolving » dates resolving, data resolving, design resolving
fast decisions » fast decision, fate decisions, art decisions

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 fast decisions ((david resolving) or (data mining))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications conversion fast decisions ((david resolving) OR (data mining)).
• Adding a wildcard symbol may retrieve word variants: communications conversion fast decisions ((david resolving) or (data mining))*.