Perhaps you should try some spelling variations:
personal communication » interpersonal communication
developing across » developing cross, development across, developing areas
technologies ist » technologien ist, technologies ict, technologies iot
information case » information based, information can, information costs
ist information » iot information, first information, cost information
4 developing » 3 developing
costs 4 » costs _, costs a, costs 4.2
case a » case 1, case 2, case 3

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

• Adding a wildcard symbol may retrieve word variants: technologies ist information case a personal communication costs 4 developing across africa.*.