Perhaps you should try some spelling variations:
development model » development models, development middle
calculations area » calculations based, calculations from, calculations prof
technologies 2 » technologies _, technologies 4
2 calculations » _ calculations, 2 calculation, 1 calculations
1 mobile » _ mobile, a mobile, 2 mobile
costs a » costs _, costs 4
area 1 » 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 2 calculations area 1 mobile communication costs a development model afrique.*.