Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
oral communication » personal communication
child development » world development
development aid » development a, development africa, development agenda
modes child » todres child, does child, homes child
flows de » flows do, flows debt, flows bei
de oral » de otras, new oral

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies _ information flows de oral communication modes child development aid afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information flows de oral communication modes child development aid afrique.*.