Perhaps you should try some spelling variations:
calculations phase » calculations charge, calculations based, calculations chapter
sales development » smes development, skills development, site's development
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
costs sales » costs saved, costs select
phase i » phase 1, phase _, phase 2
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 phase i de communication costs sales development model afrique.*.