Perhaps you should try some spelling variations:
information rates » information states, information ratio, information rules
2.3 communication » 3.2 communication, de communication, 4 communication
technology road » technology role, technology roadmap, technology robot
developing east » development east, developing a, developing asia
4 developing » 3 developing
east afrique » east africa, east african, en afrique
rates where » states where, cases where, places where
where 2.3 » where 3.1, where 3.2, where 4.7
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology road information rates where 2.3 communication costs 4 developing east afrique.*.