Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
mental development » mineral development, capital development, spatial development
inflation rules » inflation rates, information rules, inflation causes
development la » development law, development li, development land
technology 6 » technology _, technology 1, technology 3
costs mental » costs meat, costs rent
6 inflation » _ inflation, 2 inflation, d inflation
la afrique » l afrique, la fabrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology 6 inflation rules trade data communications costs mental development la afrique.*.