Perhaps you should try some spelling variations:
personal communication » interpersonal communication
communication cost » communication costs, communication costa, communications costs
development center » development case
clean development » human development, urban development
prices personal » prices regional, roles personal, driver's personal
technology dog » technology does, technology dlt, technology data
dog relations » des relations, cost relations, role relations
relations a » relations _
center hard » center harc, center based
cost clean » costs clear
a prices » a price, 2 prices, gas prices

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

• Adding a wildcard symbol may retrieve word variants: technology dog relations a prices personal communication cost clean development center hard.*.