Perhaps you should try some spelling variations:
communication conversation » communication information, communication cohesion, communication communication
conversation fast » conversion fast, conversation part, conversation post
extraction based » extraction a
fast extraction » dust extraction, root extraction, defect extraction
based libre » based fibre, based fibres, based timbre

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 fast extraction based libre~.
• Adding a wildcard symbol may retrieve word variants: communication conversation fast extraction based libre*.