Perhaps you should try some spelling variations:
mining communication » examining communication, managing communication, bringing communication
technologies based » technologies used, technology based, technologies a
based instruction » radio instruction, assisted instruction
instruction sna » instruction set, instruction a, instruction era
development en » developpement en, development menu, development eco
sna data » dna data, ssa data, asia data
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technologies based instruction sna data mining communication costs a development en afrique.*.