Perhaps you should try some spelling variations:
touch communication » trough communication, truth communication, through communication
central development » central developmental, mental development, general development
technology die » technologie die, technology does, technology 4ir
costs central » most central, across central, books central
die relation » die relative, die reaktion, die revolution
relation 4.3 » relations 4.3, relation 4.5, relation 5.3
data touch » data through
policy can » policy case, policy change, policy canada
4.3 data » 2.3 data, 3.3 data

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

• Adding a wildcard symbol may retrieve word variants: technology die relation 4.3 data touch communication costs central development policy can.*.