Perhaps you should try some spelling variations:
more communication » force communication, moral communication, vote communication
communication cost » communication costs, communication costa, communications costs
rural development » social development
development case » development china
relative der » relative de, relative order, relativer oder
proceso more » process more, process core, process model
der proceso » del proceso, des proceso, el proceso
case labor » care labor, based labor, male labor

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

• Adding a wildcard symbol may retrieve word variants: technology _ relative der proceso more communication cost rural development case labor.*.