Perhaps you should try some spelling variations:
integration schemes » integration schengen, irrigation schemes, integration regimes
graen information » green information, gain information, screen information
de integration » die integration, re integration, une integration
support graen » support grant, support greater, support group
support de » support _, support a, support 4

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: (( support de integration schemes. ) OR ( support graen information theory. ))~.
• Adding a wildcard symbol may retrieve word variants: (( support de integration schemes. ) or ( support graen information theory. ))*.