Perhaps you should try some spelling variations:
communications conclusion » communication conclusions, communications concluding, communities conclusion
conclusion based » conclusion case, occlusion based, conclusion asean
david resolving » dates resolving, data resolving, design resolving
based design » aided design
data mapping » 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 conclusion based design ((david resolving) or (((data mapping) or (data mining))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communications conclusion based design ((david resolving) OR (((data mapping) OR (data mining)))).
• Adding a wildcard symbol may retrieve word variants: communications conclusion based design ((david resolving) or (((data mapping) or (data mining))))*.