Perhaps you should try some spelling variations:
communication conversation » communication cohesion, communication communication, communication foundation
communication information » communication international, communication education
based discussion » brief discussion
discussion aod » discussions aod, discussion a, discussion am
aod line » land line, band line, 2d line

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((communication conversation) OR (communication information)) based discussion aod line~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((communication conversation) OR (communication information)) based discussion aod line".
• Adding a wildcard symbol may retrieve word variants: ((communication conversation) OR (communication information)) based discussion aod line*.