Perhaps you should try some spelling variations:
11.4.1 communication » 10.4.3 communication, 12.4.4 communication, 13.4.5 communication
developpement la » developpement de, developpement et, developpement du
technology gap » technology 1, technology 2.2, technology 3
gap inflation » has inflation, grade inflation, rapid inflation
inflation gas » inflation das, inflation bias, inflation tax
prices 11.4.1 » prices 11.3.1, process 11.4.1, prices 11.2.3
la afrique » l afrique, la fabrique, en afrique

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

• Adding a wildcard symbol may retrieve word variants: technology gap inflation gas prices 11.4.1 communication costs _ developpement la afrique.*.