Perhaps you should try some spelling variations:
tougher communication » teacher communication, thought communication, touch communication
development center » development case
per development » power development, spur development, oer developments
implications 4 » implications _, implications 5, implications 7
technology 4 » technology _, technology 1, technology 3
does tougher » does southern, does higher, does touch
center dark » center dave, center dick, center harc
costs per » cost per
4 does » 2 does

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

• Adding a wildcard symbol may retrieve word variants: technology 4 implications 4 does tougher communication costs per development center dark.*.