Every time I've tried to find anyone on it failed to turn up any useful results.

Seems change is all about the emotion than useful results.

Research should be done by experts to ensure useful results.

With part of the oil remaining I made some experiments, therefore, which may give useful results.

Others have questions about whether the agenda is concrete enough to produce useful results.

For the purpose of this article, a few useful results from that paper will be summarized.

I brooded about it for the rest of the evening without useful result.

They must, however, produce a concrete, useful and tangible result.

It is necessary to mark very large numbers to achieve any useful result.

Without a key, the algorithm would produce no useful result.