Perhaps you should try some spelling variations:
idea transfers » des transfers, der transfers, ideas transform
transfers bei » transfer bei, transfer beim, transfers ai
aguas key » aguas de, aguas del
key idea » key ideas, very idea, key item
guias de » guia de, guide de, aguas de
bei cao » bei carl
heat » head

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( aguas key idea transfers bei cao ) or ( guias de heat transfer _ chat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( aguas key idea transfers bei cao ) OR ( guias de heat transfer _ chat )).
• Adding a wildcard symbol may retrieve word variants: (( aguas key idea transfers bei cao ) or ( guias de heat transfer _ chat ))*.