Perhaps you should try some spelling variations:
business century » business center, business centers, business centre
a developpement » au developpement, de developpement, le developpement
century crisis » century ciso, century critical
1 explanation » _ explanation, 2 explanation, 3 explanation
technology 1 » technology _
des afrique » en afrique, de l'afrique
crisis a » crisis _
1 sme » 3 sme, 5 sme
_ sme » _ smes

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

• If you are trying to use Boolean operators, they must be ALL CAPS: technology 1 explanation ((1 sme) OR (_ sme)) business century crisis a developpement des afrique.~.
• Adding a wildcard symbol may retrieve word variants: technology 1 explanation ((1 sme) or (_ sme)) business century crisis a developpement des afrique.*.