Perhaps you should try some spelling variations:
mining development » mine development, housing development
development manuel » developpement manuel, development model, development master
4 transformation » 1 transformation, die transformation, der transformation
10 communication » 1 communication, de communication, 3 communication
technologies 4 » technologies _
costs mining » costs missing, costs timing, costs defining
de 10 » die 10, de 1, do 10

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

• Adding a wildcard symbol may retrieve word variants: technologies 4 transformation _ de 10 communication costs mining development manuel afrique.*.