Perhaps you should try some spelling variations:
mobile communications » mobile communication
communications costs » communication costs, communications _
developing patterns » development patterns, developing eastern, development pattern
technology dlt » technology data, technology debts, technology 21st
attention from » attentions from, attenuation from, attention some
patterns labor » patterns box, patterns prior
dlt attention » adult attention, down attention, self attention
4 developing » 3 developing
case mobile » based mobile, das mobile, can mobile
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: technology dlt attention from case mobile communications costs 4 developing patterns labor.*.