Perhaps you should try some spelling variations:
transfers field » transfers united
transfer a » transfer _, transfer 3, transfer 4
guias debt » guias de
debt cash » debt cost, debt has
field cao » field case, field a, field 2a
luis e » luis f, luis a
luis c » luis f
a acao » a adocao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((luis e) OR (luis c)) heat transfer a acao ) or ( guias debt cash transfers field cao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((luis e) OR (luis c)) heat transfer a acao ) OR ( guias debt cash transfers field cao ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((luis e) OR (luis c)) heat transfer a acao ) or ( guias debt cash transfers field cao ))*".