Perhaps you should try some spelling variations:
open communication » human communication, 3 communication, 4 communication
calculations from » calculations prof, circulations from, miscalculations from
trade development » software development
development model » development models, development middle
technologies 1 » technologies _, technologies 4, technologies 2
1 calculations » _ calculations, 2 calculations, 9 calculations
costs trade » costly trade
from 2 » from 20, from 12, from 25

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

• Adding a wildcard symbol may retrieve word variants: technologies 1 calculations from 2 open communication costs trade development model afrique.*.