Perhaps you should try some spelling variations:
transfer systems » transport systems, transit systems
have transformed » has transformed, a transformed, law transformed
mass transfer » cash transfer, basin transfer, mass transport
langages de » languages do, langage le, langues de
systems vss » systems vs, systems via, systems v
langues do » langues de, languages do, langue de
de mass » de masse, de mais, de masa
do have » who have, how have

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: (( langages de mass transfer systems vss ) OR ( langues do have transformed _ acao ))~.
• Adding a wildcard symbol may retrieve word variants: (( langages de mass transfer systems vss ) or ( langues do have transformed _ acao ))*.