Perhaps you should try some spelling variations:
communication documentation » communication foundation, communication communication, communication conversation
documentation basic » documentation basics, documentation based, documentation asia
basic extension » basics extensions, basins extension, based extension
assay lipa » assay elisa, assay fipsa, assay luma
assay iip » assay kit, assay 32p

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication documentation basic extension ((assay lipa) OR (assay iip))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communication documentation basic extension ((assay lipa) OR (assay iip))".
• Adding a wildcard symbol may retrieve word variants: communication documentation basic extension ((assay lipa) OR (assay iip))*.