Perhaps you should try some spelling variations:
china communication » china communications, chief communication, china's communications
addiction services » additional services, aviation services, application services
developpement east » development east, developpement et, developpement des
communication 1.1 » communication 4.1, communication 7.1, communication 1.3
de developpement » sme development
der addiction » drug addiction, _ addiction, oil addiction
east africa » west africa
3.3 china » 2.3 china, 6.3 china, 3.3.3 china
1.1 de » 1.1 die, 1.1 der, 2.1 de
theorie » theories

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

• Adding a wildcard symbol may retrieve word variants: theorie der addiction services 3.3 china communication 1.1 de developpement east africa.*.