Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
more communication » force communication, moral communication, vote communication
development center » development case
open development » clean development, driven development, human development
technology cost » technology case, technology can, technology choice
cost relations » east relations, post regulations, cost reductions
relations co » relations 3, relations 2, relations 5
prices more » prices power, prices macro
co prices » do prices, co primes, coal prices
cost open » post open
harc. » harch., harco., hard.

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

• Adding a wildcard symbol may retrieve word variants: technology cost relations co prices more communication cost open development center harc.*.