Perhaps you should try some spelling variations:
communication services » telecommunications services
clean development » human development, urban development
information gaps » information gap
how information » new information, 2 information, 1 information
technology how » technology 1, technology 2.2, technology 3
services clean » services can, services chap, services check
gaps de » gaps do, camps de, gaps new
de mass » de masse, de mais, de masa

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

• Performing a fuzzy search may retrieve terms with similar spellings: technology how information gaps de mass communication services clean development _ afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology how information gaps de mass communication services clean development _ afrique.*.