Perhaps you should try some spelling variations:
oral communication » personal communication
urban development » human development
technologies a » technologies _, technologies 4, technologies 2
development en » developpement en, development menu, development eco
a information » 2 information, 1 information
costs urban » cost urban, across urban, crisis urban
about de » about due, about dead, about debt
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 a information about de oral communication costs urban development en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies a information about de oral communication costs urban development en afrique.*.