Perhaps you should try some spelling variations:
transformations de » transformations des, transformations du, transformation de
oral communication » personal communication
development sierra » development series, development saber, development since
2 transformations » _ transformations, 9 transformations, 2 transformation
technologies 2 » technologies _, technologies 4
3 development » 2 development
sierra africa » sahara africa, intra africa
two oral » two rural, who oral
media 3 » media _, media 1, media 4
de two » done two

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

• Performing a fuzzy search may retrieve terms with similar spellings: technologies 2 transformations de two oral communication media 3 development sierra africa.~.
• Adding a wildcard symbol may retrieve word variants: technologies 2 transformations de two oral communication media 3 development sierra africa.*.