Perhaps you should try some spelling variations:
technologies could » technologies co, technologies cohort, technologies based
could formulation » rule formulation, model formulation, la formulation
formulation over » formation over, formulation model, formulation where
de communication » mobile communication, online communication
development west » development what, development where, development work
2.3 development » 2 development, 2015 development, 1 development
over do » over de, ever do, over die
do de » do we, dx de
a 2.3 » a 3.3, b 2.3, _ 2.3

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

• Adding a wildcard symbol may retrieve word variants: technologies could formulation over do de communication a 2.3 development west africa.*.