Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
data communication » data communications
based formulation » basic formulation, case formulation, based simulation
dual development » rural development, fuel development, al development
communication 1 » communication _, communication a, communication 3
development en » developpement en, development menu, development eco
formulation 3 » formulation _, formulations _, formulating _
der data » under data, order data, der daten
1 dual » 13 dual, _ dual, a dual
3 der » _ der, 2 der

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

• Adding a wildcard symbol may retrieve word variants: technologies based formulation 3 der data communication 1 dual development en afrique.*.