Perhaps you should try some spelling variations:
oral communication » personal communication
clean development » human development, urban development
development law » development latin, development 1
technologies 1 » technologies _, technologies 4, technologies 2
information a » information age, information about
costs clean » costs clear
law afrique » l afrique
de oral » de otras, new oral
a de » a die, a der, a des

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 information a de oral communication costs clean development law afrique.*.