Perhaps you should try some spelling variations:
calculations charge » calculations chapter, calculations phase, calculation range
development model » development models, development middle
technologies dft » technologies de, technologies art, technologies bit
dft calculations » dft calculation, life calculations, _ calculations
de communication » mobile communication, online communication
sme development » trade development
costs sme » costs some, costs amy
charge a » charge _, charges _, charge de
a de » a die, a der, a des

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

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