Perhaps you should try some spelling variations:
communication cross » communication costs
development cities » development citizen, development critics, development series
ret l'integration » et l'integration, de l'integration, droit l'integration
technologies ret » technologies _, technologies 4, technologies 2
l'integration do » l'integration de, l'integration du, l'integration des
cross human » gross human, process human, cross domain
cities i » cities _, cities a, cities 3
do does » do dogs, der does, who does

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

• Adding a wildcard symbol may retrieve word variants: technologies ret l'integration do does _ communication cross human development cities i.*.