Perhaps you should try some spelling variations:
hazard communication » towards communication, based communication, brand communication
technologies used » technologies based, technology used, technologies _
communication 3.5 » communication 23.5, communication 3.3, communication 3.2
channels among » changes among, change among, channels shaping
used informal » based informal, needs informal, vs informal
among hazard » among hard
2 developing » 3 developing, 4 developing, 2 development
developing e » developing _, developing a, developing east
e afrique » en afrique, l afrique, de l'afrique
3.5 2 » 3.5 2d, 3.5 _, 3.5 a

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

• Adding a wildcard symbol may retrieve word variants: technologies used informal channels among hazard communication 3.5 2 developing e afrique.*.