Perhaps you should try some spelling variations:
vertical communication » verbal communication, virtual communication, optical communication
developments rates » development rate, developments notes, developments related
ii developments » ii development, _ developments, 2 developments
technology 3.1 » technology 1, technology 2.2, technology _
from vertical » from virtual, from critical, from medical
rates africa » state africa
gap from » gaps from, map from, gdp from
a ii » a iii, i ii, _ ii

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 information gap from vertical communication a ii developments rates africa.*.