Perhaps you should try some spelling variations:
communication modes » communication model, communication des, communication media
oral communication » personal communication
information needs » information networks
asian development » human development, urban development, clean development
modes asian » modern asian, jones asian
a afrique » l afrique, en afrique
needs de » needs men, needs one, needs _
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 needs de oral communication modes asian development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information needs de oral communication modes asian development a afrique.*.