Perhaps you should try some spelling variations:
estate development » trade development, sme development, future development
oral communication » personal communication
development center » development case
information needs » information networks
communication 3 » communication _, communication a
technologies 4 » technologies _
4 information » 2 information, 1 information
center africa » centers africa, century africa, century african
needs so » needs _, needs a, needs 3
3 estate » 3 state, _ estate, _ estates
so oral » who oral

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 information needs so oral communication 3 estate development center africa.*.