Perhaps you should try some spelling variations:
technology support » technology sector
support functions » supply functions, port functions, supply function
oil communication » oral communication, social communication, moral communication
2.3 development » 2 development, 2015 development, 1 development
functions used » functions using
a american » al american, _ american, 2 american
costs 2.3 » costs 4.2, costs 4.4
used non » based non, used how

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

• Adding a wildcard symbol may retrieve word variants: technology support functions used non oil communication costs 2.3 development a american.*.