Perhaps you should try some spelling variations:
formulation where » formulation over, formulation des, calculation where
scale development » estate development, trade development, sme development
development model » development models, development middle
de communication » mobile communication, online communication
technologies 3 » technologies _, technologies 4, technologies 2
3 formulation » _ formulation, _ formulating
costs scale » cost scale, costs case, costs sales
where dx » where do, where did, where _
dx de » d de, ix de, x de

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

• Adding a wildcard symbol may retrieve word variants: technologies 3 formulation where dx de communication costs scale development model afrique.*.