Perhaps you should try some spelling variations:
oral communication » personal communication
technology port » technology report, technology export, technology park
4.3 development » 2.3 development, 1.3 development, 3.3 development
port functions » cost functions, profit functions, market functions
development de » development d, development ds, developpement de
functions als » functions all, functions a, functions early
costs 4.3 » costs 4.2, costs 4.4, costs 2.3
de africa » does africa, de america, use africa
non oral » non oil, non arab
als non » abs non, talks non, als norm

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

• Adding a wildcard symbol may retrieve word variants: technology port functions als non oral communication costs 4.3 development de africa.*.