Perhaps you should try some spelling variations:
communication cross » communication costs
between developed » between development
developed century » developed country, developed culture, developed content
prevention frame » prevention from, prevention case, prevention late
4 communication » 3 communication, 5.4 communication, de communication
technology led » technology land, technology law, technology 1
led prevention » de prevention, la prevention, et prevention
cross between » press between, crossing between, process between
century can » century case, century cape, century cats
frame past » frame phase, frame best
past 4 » past _, past 2, past 3

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

• Adding a wildcard symbol may retrieve word variants: technology led prevention frame past 4 communication cross between developed century can.*.