Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
study iteration » study migration, study station, study international
iteration rates » inflation rates, migration rates, taxation rates
developing east » development east, developing a, developing asia
4 developing » 3 developing
east afrique » east africa, east african, en afrique
rates notes » rate notes, rate note, notes notes
notes data » notes malta, rates data
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 study iteration rates notes data communications costs 4 developing east afrique.*.