Perhaps you should try some spelling variations:
integration rules » integration roles, integration euler's, immigration rules
3.2 communication » 3 communication, 2.3 communication, de communication
au developpement » du developpement, de developpement, le developpement
des afrique » en afrique, de l'afrique
rules rate » rules state, rules trade, rules game
rate 3.2 » rates 3.2, rate 4.2, rate 5.2
costs au » costs a, costs amy, costs _

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

• Adding a wildcard symbol may retrieve word variants: technological _ integration rules rate 3.2 communication costs au developpement des afrique.*.