Perhaps you should try some spelling variations:
calculations charge » calculations chapter, calculations phase, calculation range
development model » development models, development middle
de communication » mobile communication, online communication
technologies de » technologies _, technologies 4, technologies 2
de calculations » mde calculations, dft calculations, _ calculations
sme development » trade development
costs sme » costs some, costs amy
charge i » charge _, charge a, charge 5
i de » i die, i der, i den

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

• Adding a wildcard symbol may retrieve word variants: technologies de calculations charge i de communication costs sme development model afrique.*.