Talvez debería tentar con algunhas variantes ortográficas:
communication fermentation » communication representation, communication documentation, communication presentation
fermentation systems » representation systems, argumentation systems, documentation systems
systems identifying » systems verifying
databases invited » databases induced, datasets invited, databases revisited
databases united » databases under, databases using, databases bncod

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

• Performing a fuzzy search may retrieve terms with similar spellings: communication fermentation systems identifying ((databases invited) or (databases united))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: communication fermentation systems identifying ((databases invited) OR (databases united)).
• Adding a wildcard symbol may retrieve word variants: communication fermentation systems identifying ((databases invited) or (databases united))*.