Perhaps you should try some spelling variations:
sector compensation » sector cooperation, sectoral composition
innovators best » innovators being
developpement 1 » developpement 1.4, developpement de, developpement et
technology 3.2 » technology 2.2, technology 3.1, technology 2
3.2 innovators » 3.2 innovations, 4.2 innovations, 1.2 innovations
time sector » time section, sme sector, rice sector
best time » test time, next time, past time
17 a » 1 a, 7 a, 19 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 3.2 innovators best time sector compensation ((17 a) OR (17 _)) developpement 1 africa.~".
• Adding a wildcard symbol may retrieve word variants: technology 3.2 innovators best time sector compensation ((17 a) OR (17 _)) developpement 1 africa.*.