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
development d » development ds, development 1, development did
d afrique » l afrique, en afrique, de l'afrique
3 sme » 3 same, _ sme, 3 smt
2 do » _ do, 2 de, 1 do
2 co » _ co, a co, 2 c

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technology challenges informality ((2 do) OR (2 co)) 3 communication 3 sme development d afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology challenges informality ((2 do) OR (2 co)) 3 communication 3 sme development d afrique.*.