Perhaps you should try some spelling variations:
communication cost » communication costs, communication costa, communications costs
model developments » model development, modern developments, code developments
4.1 communication » 4 communication, 2.3 communication, 3.2 communication
inflation target » inflation targeting, inflation rate, inflation rates
developments en » developments end, developments web, developments _
technology u.s » technology uses, technology 2.2, technology use
u.s inflation » und inflation, 2.3 inflation, 3.2 inflation
target data » target date, target rate, target path
data 4.1 » data 4.2, data 4.3, data 1

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

• Adding a wildcard symbol may retrieve word variants: technology u.s inflation target data 4.1 communication cost model developments en afrique.*.