Perhaps you should try some spelling variations:
communications cost » communications costs, communications cross, communication costs
u.s communications » 3.1 communications, les communications, nps communications
data developments » data development, rate developments, later developments
series attention » special attention, members attention, media attention
attention from » attentions from, attenuation from, attention some
from which » from rich
which u.s » which has
cost data » test data

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

• Adding a wildcard symbol may retrieve word variants: technology series attention from which u.s communications cost data developments _ car.*.