Perhaps you should try some spelling variations:
3.2 communication » 3 communication, 2.3 communication, de communication
mine development » sme development, trade development, business development
technology der » technology does, technology 4ir, technology dlt
development en » developpement en, development menu, development eco
der inflation » core inflation, _ inflation, low inflation
inflation das » inflation bias, inflation tax, inflation a
das sparse » data sparse, a sparse, das smarte
sparse 3.2 » space 3.2, sparse 2.5
costs mine » costs money, costs timing

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

• Adding a wildcard symbol may retrieve word variants: technology der inflation das sparse 3.2 communication costs mine development en afrique.*.