Perhaps you should try some spelling variations:
scale communication » scales communication, space communication, style communication
technologies iot » technologies ict, technologies icts, technologies art
iot information » ist information, cost information, plot information
les development » less development, does development, ides development
1 afrique » l afrique, en afrique, 1 enrique
a 2.2 » a 3.2, a 4.2, b 2.2
a les » a lens, a less, 2 les

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 iot information ((a 2.2) OR (_ 2.2)) scale communication a les development 1 afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies iot information ((a 2.2) OR (_ 2.2)) scale communication a les development 1 afrique.*.