Perhaps you should try some spelling variations:
trough communication » through communication, thought communication, touch communication
communication cost » communication costs, communication costa, communications costs
center development » centered development, centred development, gender development
development inter » development intel, development center, development index
reduction 5.5 » reduction 3.4, reduction _, reduction a
race trough » france through, peace through, space through
cost center » cost centers, 21st centery, cost chapter
inter actor » inter action
5.5 race » 5.5 rare, 5.5 case, 5.5 role

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

• Adding a wildcard symbol may retrieve word variants: technology risk reduction 5.5 race trough communication cost center development inter actor.*.