Perhaps you should try some spelling variations:
communication model » communication media
oral communication » personal communication
information gaps » information gap
mine development » sme development, trade development, business development
development en » developpement en, development menu, development eco
model mine » model fine, model male, model mit
gaps do » games do, gaps how, gaps vom
do oral » do rural, who 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 gaps do oral communication model mine development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies _ information gaps do oral communication model mine development en afrique.*.