Perhaps you should try some spelling variations:
calculation range » calculations charge, calculation a, calculation brain
der communication » de communication, under communication, debt communication
development model » development models, development middle
technologies 3.1 » technologies 2.1, technologies 3.2, technologies _
3.1 calculation » 3.2 calculation, _ calculation, 2 calculation
sme development » trade development
costs sme » costs some, costs amy
range a » range _, range 3, change a
a der » _ der, 2 der, 3 der

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

• Adding a wildcard symbol may retrieve word variants: technologies 3.1 calculation range a der communication costs sme development model afrique.*.