Talvez debería tentar con algunhas variantes ortográficas:
communications conversion » communications convention, communication conversation, communications conclusion
conversion based » conversion del, conversion a, converter based
david resolving » dates resolving, data resolving, design resolving
based decision » based design
data mapping » data mining, a mapping

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