Perhaps you should try some spelling variations:
technologies based » technologies used, technology based, technologies a
oral communication » personal communication
based information » basic information, based innovation, land information
information gaps » information gap
code development » model development, care development, case development
costs code » costs case, costs cost, lists code
gaps how » gap how, saps how, traps how
how oral » how moral, how rural, how arab

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

• Adding a wildcard symbol may retrieve word variants: technologies based information gaps how oral communication costs code development _ africa.*.