Perhaps you should try some spelling variations:
communication costs » communication systems, communication efforts, communication skills
technologies new » technologies _, technologies a
new information » _ information, energy information, chief information
de development » e development, de developpement, code development
development a » development _, development bank, development banks
de mobile » does mobile, _ mobile, a mobile
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 new information _ de mobile communication costs de development a afrique.~.
• Adding a wildcard symbol may retrieve word variants: technologies new information _ de mobile communication costs de development a afrique.*.