Perhaps you should try some spelling variations:
communication 2.3.3 » communication 3.3, communication 2.4, communication 3.2
technologies a » technologies _, technologies 4, technologies 2
a information » 2 information, 1 information
information a » information age, information about
a developing » a development
developing a » developing _
a hazard » _ hazard, _ hazards
a africa » 1 africa, can africa, em africa
2.3.3 a » 2.3.3 _
a hard » _ hard

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "technologies a information a ((a hazard) OR (a hard)) communication 2.3.3 a developing a africa.~".
• Adding a wildcard symbol may retrieve word variants: technologies a information a ((a hazard) OR (a hard)) communication 2.3.3 a developing a africa.*.