Perhaps you should try some spelling variations:
modern communications » modern communication, modern communicators, border communications
communications costs » communication costs, communications _
3.1 transformation » 3.2 transformation, 3.3 transformation, 1.3.1 transformation
transformation a » transformation _
developing wheat » developing heart, developing east, developing areas
technology 3.1 » technology 1, technology 2.2, technology _
a developing » a development
costs a » costs _, costs 4
a pre » _ pre
prices. » price.

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

• Adding a wildcard symbol may retrieve word variants: technology 3.1 transformation a pre modern communications costs a developing wheat prices.*.