Perhaps you should try some spelling variations:
technology crowd » technology cross, technology across, technology cost
de communication » mobile communication, online communication
developpement il » developpement de, developpement et, developpement du
crowd selection » crop selection, avoid selection, down selection
selection mode » selection model, selection more, selection models
mode water » model water, modern water, mine water
il afrique » l afrique, en afrique
water de » water _, water a, water 2

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

• Adding a wildcard symbol may retrieve word variants: technology crowd selection mode water de communication costs _ developpement il afrique.*.