Perhaps you should try some spelling variations:
connecting factors » connecting actors, connecting factor, connecting sectors
technologies 4 » technologies _
development de » development d, development ds, developpement de
4 connecting » _ connecting, 2 connecting, 8 connecting
factors gas » factors case, factors a, factors can
de afrique » de l'afrique, en afrique, l afrique
3 sme » 3 same, _ sme, 5 sme
3 smt » _ smt, 3 set, 4 smt

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: "technologies 4 connecting factors gas _ communication ((3 sme) OR (3 smt)) development de afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies 4 connecting factors gas _ communication ((3 sme) OR (3 smt)) development de afrique.*.