Perhaps you should try some spelling variations:
oral communication » personal communication
information cause » information case, information use, information classes
developing basin » developing asia, developing asian, developing based
technologie de » technologies de, technologie der, technologie die
de information » die information, de informacion, e information
cause order » clause order, causal order
basin areas » basin area, basic areas, base areas

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

• Adding a wildcard symbol may retrieve word variants: technologie de information cause order oral communication costs _ developing basin areas.*.