Perhaps you should try some spelling variations:
model development » local development, social development, global development
de communication » mobile communication, online communication
development case » development china
technology et » technology e, technology ecit, technology eimt
et relations » des relations, 3 relations, ethnic relations
costs model » cost model, cost models, costs money
case birth » rate birth, sale birth
case time » scale time, waste time, same time
time de » time die, estime de, time done

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

• Adding a wildcard symbol may retrieve word variants: technology et relations case time de communication costs model development case birth.*.