Talvez debería tentar con algunhas variantes ortográficas:
communication control » communication concepts, communication culture, communication channel
database optimized » databases optimizing, database optimising, database limited
data optimising » data optimizing, database optimising, metadata optimising
le directional » _ directional, bi directional, 8 directional
control le » control lee, control les, control l

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication control le directional ((database optimized) or (data optimising))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication control le directional ((database optimized) OR (data optimising)).
• Adding a wildcard symbol may retrieve word variants: communication control le directional ((database optimized) or (data optimising))*.