Perhaps you should try some spelling variations:
communications case » communication case, communications can, communications code
2.1 communications » 3.1 communications, 4.1 communication, 1.1 communication
sums developpement » du developpement, au developpement, ou developpement
technology rate » technology state, technology role, technology related
inflation rates » inflation rate
developpement l » developpement il, developpement la, developpement de
rate inflation » grade inflation, wage inflation, age inflation
rates file » rates figure
case sums » parse sums, case sub
l afrique » en afrique
file 2.1 » file 2.7, file 21, chile 2.1

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

• Adding a wildcard symbol may retrieve word variants: technology rate inflation rates file 2.1 communications case sums developpement l afrique.*.