Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
oral communication » mobile communication, _ communication, risk communication
technologies aids » technologies a, technologies any, technologies fish
aids information » hidden information, chief information, award information
de development » e development, de developpement, code development
development co » development _, development a, development case
costs de » costs per, costs _, costs a

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

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