Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
development middle » development models
calculations area » calculations based, calculations from, calculations prof
mine development » sme development, trade development, business development
technologies 1 » technologies _, technologies 4, technologies 2
1 calculations » _ calculations, 2 calculations, 9 calculations
costs mine » costs money, costs timing
area 2 » area _, area 5, area a

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 calculations area 2 open communication costs mine development middle afrique.*.