Perhaps you should try some spelling variations:
communication cross » communication costs
oral communication » personal communication
humans development » human development, humanist development, human developments
information amp » information age, information a, information act
development d » development ds, development 1, development did
cross humans » gross human, ghosts humans
d afrique » l afrique, en afrique, de l'afrique
do oral » do rural, who oral
amp do » amp doc, amp co, amp de

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

• Adding a wildcard symbol may retrieve word variants: technologies _ information amp do oral communication cross humans development d afrique.*.