Perhaps you should try some spelling variations:
vertical communication » verbal communication, virtual communication, optical communication
developments rates » development rate, developments notes, developments related
high developments » hogg developments, ii developments, city developments
from vertical » from virtual, from critical, from medical
rates africa » state africa
gap from » gaps from, map from, gdp from

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

• Adding a wildcard symbol may retrieve word variants: technology _ information gap from vertical communication a high developments rates africa.*.