Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
clean development » human development, urban development
development sino » development using, development since, development saint
technologies de » technologies _, technologies 4, technologies 2
de information » die information, de informacion, e information
information 13 » information 1.3, information 3, information 1
sino african » six african, line african, pan african
great risk » great irish, great rift, great rock
cost clean » costs clear
13 great » 1 great, 10 great, 14 great

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

• Adding a wildcard symbol may retrieve word variants: technologies de information 13 great risk communication cost clean development sino african.*.