Donald Trump was omitted from a Google search of presidential candidates earlier this week because of a "technical bug" in the search engine's information mapping system used for filtering top results."We found a technical bug in 'Search' where only the presidential candidates participating in an active primary election were appearing in a Knowledge Graph result," a Google spokesman told Snopes.com on Wednesday. "Because the Republican and Libertarian primaries have ended, those candidates did not appear."This bug was resolved early this morning."Internet users searching the term "presidential candidates" on Thursday found that the results produced text and pictures of Democrats Hillary Clinton and Bernie Sanders and Green Party candidate Jill Stein, Snopes reported.No information on Trump or Libertarian Party candidate Gary Johnson came up in the search.However, the Snopes report includes a screenshot of similar search results that was taken by Stein on July 17, after she petitioned Google to be included in the results.That screenshot included both Trump and Johnson, according to the report.Trump accepted the Republican presidential nomination last Thursday. The last primaries were held on June 7.Twitter erupted with angry Google users slamming the search engine for excluding Trump.In recent months, Google and Facebook have been among the Silicon Valley companies that have been accused of bias toward conservatives and similar news organizations.Google has long insisted that it does not favor any political ideology.The company's CEO, Eric Schmidt, has been on the Democratic National Committee's Democratic Victory Task Force since 2014, The Daily Caller reports.