Perhaps you should try some spelling variations:
technologies couple » technologies could, technologies chapter, technologies cookies
couple interaction » couple interactions, coupled interactions, computer interaction
mean communication » lean communication, modern communication, human communication
interaction pt » interaction _, interaction 1, interaction 4
4 developing » 3 developing
data mean » data map
pt data » pet data, ct data, plot data
costs 4 » costs _, costs a, costs 4.2

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

• Adding a wildcard symbol may retrieve word variants: technologies couple interaction pt data mean communication costs 4 developing _ afrique.*.