Perhaps you should try some spelling variations:
de communication » mobile communication, online communication
key development » city development, mena development, energy development
technology des » technology does, technology debts, technology nodes
des relations » les relations, its relations, et relations
relations qos » relations 21st, relations _, relations a
china birth » chains birth, child birth, china north
costs key » costs amy
aware de » aware db, aware deep, aware dvs

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

• Adding a wildcard symbol may retrieve word variants: technology des relations qos aware de communication costs key development china birth.*.