Perhaps you should try some spelling variations:
technology improving » technologies improving, technology improve, technology emerging
improving formation » improving information, improving education, improve information
formation water » formation after, formation chapter, formation pattern
4 communication » 3 communication, 5.4 communication, de communication
a developpement » au developpement, de developpement, le developpement
developpement l » developpement il, developpement la, developpement de
water prices » water services, water pricing, factor prices
l afrique » en afrique
prices 4 » prices _, prices a, prices 3
costs a » costs _, costs 4

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

• Adding a wildcard symbol may retrieve word variants: technology improving formation water prices 4 communication costs a developpement l afrique.*.