Perhaps you should try some spelling variations:
technology challenges » technological challenges, technology change, technical challenges
4 communication » 3 communication, 5.4 communication, de communication
development l » development li, development 1, development law
l afrique » en afrique
a sme » _ sme, 5 sme, a see
3 sme » 3 same, _ sme, 3 smt
do 4 » do _, do i, do a

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 _ do 4 communication ((a sme) OR (3 sme)) development l afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology challenges informality _ do 4 communication ((a sme) OR (3 sme)) development l afrique.*.