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 developpement » _ development, a development, sme development
developpement en » development _, development a, development co
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 developpement en afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies aids information _ de oral communication costs de developpement en afrique.*.