Perhaps you should try some spelling variations:
technologies concrete » technologies corporate, technologies cohort, technologies create
concrete formulation » contract formulation
key developments » key development, new developments, _ developments
communication 3 » communication _, communication a
formulation du » formulation de, formulation des, formulation _
developments 4 » developments _
du losses » gdp losses, _ losses, 2 losses
4 afrique » l afrique, en afrique, 2014 afrique
3 key » _ key

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

• Adding a wildcard symbol may retrieve word variants: technologies concrete formulation du losses _ communication 3 key developments 4 afrique.*.