Perhaps you should try some spelling variations:
developpement du » developpement de, developpement des, developpement et
a developpement » au developpement, de developpement, le developpement
technology 4 » technology _, technology 1, technology 3
section low » section l, section o, section w
du afrique » en afrique, l afrique, de l'afrique
4 section » 3 section, 4 selection, 1.4 section
rate due » rate does
rate de » rate debt, rate does, rateio de
costs a » costs _, costs 4

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 4 section low ((rate de) OR (rate due)) communication costs a developpement du afrique.~".
• Adding a wildcard symbol may retrieve word variants: technology 4 section low ((rate de) OR (rate due)) communication costs a developpement du afrique.*.