Perhaps you should try some spelling variations:
personal communication » interpersonal communication
international als » international goals, international aids, international arms
development risk » development russia, development review, development rights
technology 2nd » technology 2.2, technology 2, technology 2.1
4 development » 2 development, 4 developing
risk american » irish american, crisis american, paris american
1 personal » a personal, 4 personal, 1945 personal
costs 4 » costs _, costs a, costs 4.2
als 1 » abs 1, als _, all 1

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

• Adding a wildcard symbol may retrieve word variants: technology 2nd international als 1 personal communication costs 4 development risk american.*.