Perhaps you should try some spelling variations:
transfer schemes » transfer scheme, transfer systems
schemes gross » schemes pro, schemes vss
a transformed » _ transformed, _ transformer, a transforming
gas transfer » cash transfer, mass transfer, a transfer
langue de » langue du, lange der
langue et » langues et, langue en, langage et
langue e » langue en, langue _, langues de
de gas » de gaos, die gas, de gaz

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( langue de gas transfer schemes gross ) or ( ((langue e) OR (langue et)) a transformed _ can ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( langue de gas transfer schemes gross ) OR ( ((langue e) OR (langue et)) a transformed _ can ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( langue de gas transfer schemes gross ) or ( ((langue e) OR (langue et)) a transformed _ can ))*".