Perhaps you should try some spelling variations:
communication costa » communication costs, communications costs, communication cote
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 log » technology lag, technology low, technology law
log inflation » low inflation, local inflation, lower inflation
target date » target rate, target range
costa model » cost model, cost models, costa del
date 4.1 » daten 4.1, data 4.1, date 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology log inflation target date 4.1 communication costa model developments en afrique.*.