Perhaps you should try some spelling variations:
mass transfer » cash transfer, basin transfer, mass transport
united autor » united action, und autor, cited author
transform 1 » transform a, transform 3, transform 5
guias de » guia de, guide de, aguas de
de mass » de masse, de mais, de masa
f idea » _ idea, 1 idea, 2 idea

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( guias de mass transfer united autor ) OR ( luis f idea ((transform 1) OR (transform _)) chao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( guias de mass transfer united autor ) or ( luis f idea ((transform 1) OR (transform _)) chao ))~".
• Adding a wildcard symbol may retrieve word variants: (( guias de mass transfer united autor ) or ( luis f idea ((transform 1) OR (transform _)) chao ))*.