Sentence examples for problem has not been found from inspiring English sources

A model for solving this problem has not been found everywhere in the EU.

(Rick Spina, assistant vehicle line manager for the G.M. utilities, said the software failure in Bravada No. 2 was a fluke, since such a problem had not been found in 1.5 million miles of testing).

Comic Relief clearly understands the problem, but a solution has not been found.

A canonical problem for a two-dimensional full space has not been found.

In contrast, in Slovakia, Q fever does not pose a serious public health problem, and the chronic form of infection has not been found either in follow-ups of a Q-fever epidemic connected with goats imported from Bulgaria and other previous Q-fever outbreaks or in a serologic survey.

The getaway vehicle has not been found.

(The ad has not been found).

Her body has not been found.

His killer has not been found.

Dylan has not been found.

His body has not been found.