Perhaps you should try some spelling variations:
face communication » voice communication, de communication, time communication
technology 3.2 » technology 2.2, technology 3.1, technology 2
3.2 relation » 3.2 correlation, 3.2 relationship
costs social » sports social, its social, meets social
relation de » relation des, relations der, relacion del
crises face » crises case, crises since
china labor » china labour, china's labor, child labor
de crises » des crises, do crises, de crise

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

• Adding a wildcard symbol may retrieve word variants: technology 3.2 relation de crises face communication costs social development china labor.*.