Perhaps you should try some spelling variations:
communication barriers » communication series, communication disorders
developpement de » developpement des, developpement durable
technologies la » technologies a, technologies le, technologies lead
a communication » la communication, data communication, data communications
la formulacion » la formulation, la formacion, _ formulation
formulacion de » formulation des, formacion de, formulation _
de afrique » de l'afrique, en afrique, l afrique
de does » der does, do does, one does
does a » does _

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

• Adding a wildcard symbol may retrieve word variants: technologies la formulacion de does a communication barriers _ developpement de afrique.*.