Perhaps you should try some spelling variations:
oral communication » personal communication
technologies more » technologies market, technologies co, technologies art
more information » price information, trade information
safe development » safety development, scale development, state development
1 afrique » l afrique, en afrique, 1 enrique
pt 4 » pt 2, pt 1
pt 3 » pt 2, pt 1

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 more information ((pt 4) OR (pt 3)) oral communication _ safe development 1 afrique.~".
• Adding a wildcard symbol may retrieve word variants: technologies more information ((pt 4) OR (pt 3)) oral communication _ safe development 1 afrique.*.