Perhaps you should try some spelling variations:
communication skills » communication services, communication systems
oral communication » mobile communication, _ communication, risk communication
trade information » price information, private information, credit information
urban development » human development
technology trade » technology transfer, technology change, technology transfers
information age » information gaps, information laws, information _
skills urban » skills road, skills human

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology trade information age de oral communication skills urban development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology trade information age de oral communication skills urban development _ afrique.*.