Perhaps you should try some spelling variations:
technology challenges » technological challenges, technology change, technical challenges
3 communication » 4 communication, de communication, data communication
communication 3 » communication _, communication a
sme development » trade development
informality 2 » informality _, informality a, informality 5
1 afrique » l afrique, en afrique, 1 enrique
3 sme » 3 same, _ sme, 3 smt
2 de » 2 die, 2 der, _ de
de 3 » des 3, der 3, de 35

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

• Adding a wildcard symbol may retrieve word variants: technology challenges informality 2 de 3 communication 3 sme development 1 afrique.*.