Perhaps you should try some spelling variations:
oral communication » personal communication
communication cost » communication costs, communication costa, communications costs
open developments » open development, oer developments, modern developments
risk reductions » risk reduction, price reductions, cost reductions
reductions 4.2 » reduction 4.2, reductions 2.2, reductions 4.1
service oral » service rural, service areas, service area
4.2 service » 4 service
cost open » post open

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

• Adding a wildcard symbol may retrieve word variants: technology risk reductions 4.2 service oral communication cost open developments _ aortic.*.