Perhaps you should try some spelling variations:
2.3.5 communications » 2.3 communication, 3.5 communication, 2.5 communication
communications code » communication mode, communications case, communications models
developpement de » developpement des, developpement durable
a developpement » au developpement, de developpement, le developpement
technology has » technology hard, technology have, technology how
inflation food » inflation good, inflation from, inflation und
has inflation » how inflation, u.s inflation, cases inflation
prices 2.3.5 » prices 2.3.1, prices 2.3.4, prices 2.3.6
code a » code _, code 2

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

• Adding a wildcard symbol may retrieve word variants: technology has inflation food prices 2.3.5 communications code a developpement de l'afrique.*.