Perhaps you should try some spelling variations:
communication cross » communication costs
model developments » model development, modern developments, code developments
1 communication » 10 communication, 3 communication, 4 communication
developments 4 » developments _
inflation tax » inflation rate, inflation _, inflation target
technology 1 » technology _
1 inflation » 10 inflation, 12 inflation, _ inflation
cross model » cross modal, across models, across modes
tax paper » tax payer, tax payers, a paper
4 afrique » l afrique, en afrique, 2014 afrique
paper 1 » paper _, paper i, paper 2

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

• Adding a wildcard symbol may retrieve word variants: technology 1 inflation tax paper 1 communication cross model developments 4 afrique.*.