Perhaps you should try some spelling variations:
3.3 communication » 2.3 communication, 3.2 communication, 3.5 communication
park information » pack information, ark information, paris information
information when » information what, information war, information wants
technology park » technology parks
des afrique » en afrique, de l'afrique
when rules » ten rules, wooden rules
rules 3.3 » rules 3.2, rules 4.3, rules 4.2

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

• Adding a wildcard symbol may retrieve word variants: technology park information when rules 3.3 communication costs _ developpement des afrique.*.