Perhaps you should try some spelling variations:
mine developpement » mine development, de developpement, le developpement
2.1 communication » 2.14 communication, 2.3 communication, 2.7 communication
developpement en » developpement et, developpement des, developpement de
technology flow » technology low, technology from, technology food
inflation rates » inflation rate
flow inflation » low inflation, food inflation, log inflation
costs mine » costs money, costs timing
whole 2.1 » whole 2.10, whole 4.11, chile 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology flow inflation rates whole 2.1 communication costs mine developpement en afrique.*.