Perhaps you should try some spelling variations:
development moving » development making, development meeting, development growing
formulation where » formulation over, formulation des, calculation where
de communication » mobile communication, online communication
land development » world development, child development
costs land » cost land, costly land, costs canada
where x » where _, where i, where a
x de » x die, x der, dx de

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

• Adding a wildcard symbol may retrieve word variants: technologies _ formulation where x de communication costs land development moving afrique.*.