Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
data communication » data communications
vector development » sector development, sector developments, factor development
development after » developments after, development master, development matter
technology trade » technology trends, technology transfer, technology transfers
trade relations » trade regulation
after aortic » after abortion, acute aortic, after art
relations 1 » relations _, relations a, relations 3
crisis data » crisis dating, crisis update, crisis david
cost vector » class vector, reset vector, short vector
1 crisis » 19 crisis

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

• Adding a wildcard symbol may retrieve word variants: technology trade relations 1 crisis data communication cost vector development after aortic.*.