אולי כדאי לנסות איות אחר או כתיב מלא:
communicating affection » communication affection, communicate affection, communication affecting
databases optimizing » catalysis optimizing, analysis optimizing, databases mining
scale bidirectional » a bidirectional, based bidirectional, smith bidirectional
scale directional » local directional, dual directional, le directional

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

• Performing a fuzzy search may retrieve terms with similar spellings: communicating affection ((scale directional) OR (scale bidirectional)) databases optimizing~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "communicating affection ((scale directional) OR (scale bidirectional)) databases optimizing*".