Few users know how best to use search engines.
Six in 10 of those surveyed typed in just one word in order to find what they were looking for - a big ask, when market leader Google, for instance, indexes 4,285,199,774 documents.
Add in those who use two words, and that's four-fifths of searchers. Only 3% tie words together with quote marks, and 1% use other advanced search techniques to get better results.
And when results are returned, few people look beyond the initial links provided. "If it is beyond the first page, it is as if it did not exist," Dr Nielsen says.