Perhaps you should try some spelling variations:
communication mitigating » communication motivating, communication mitigation, communication integrating
mitigating based » mitigating blood, mitigating land, mitigating acid
based discussion » brief discussion
array ang » array along, array range, array nano
arrays a » arrays _

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication mitigating based discussion ((((array ang) or (arrays ang))) or (arrays a))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication mitigating based discussion ((((array ang) OR (arrays ang))) OR (arrays a)).
• Adding a wildcard symbol may retrieve word variants: communication mitigating based discussion ((((array ang) or (arrays ang))) or (arrays a))*.