Perhaps you should try some spelling variations:
technologies basic » technologies based, technologies bit, technologies big
communication room » communication robyn, communication r, communication 3
basic formulation » basic population, bayesian formulation, policy formulation
du developpement » de developpement, le developpement, et developpement
developpement en » developpement et, developpement des, developpement de
formulation who » formulation where, formulation _, formulation 3
so mobile » go mobile, non mobile, how mobile
room du » room d1, room d2, room d3
who so » who do, who go, who sold

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

• Adding a wildcard symbol may retrieve word variants: technologies basic formulation who so mobile communication room du developpement en afrique.*.