"An extensive air and land search failed to detect any sign of him on the island."

The group fails to detect the skills and experiences of different members.

We fail then to detect a significant change in the process.

It is not known how many cases other laboratories are failing to detect.

At this stage of technology, they cannot fail to detect us.

The majority of government safety inspectors failed to detect these problems.

These tests may also fail to detect a problem when there is one.

In one case, the tests failed to detect the virus.

The operation failed to detect any trace of the child.

Or if they did, he failed to detect the sounds of a search.