U.S. job openings surged to a 14-year high in February but a steady pace of hiring suggested employers are having trouble finding suitable workers, a trend that could put upward pressure of wage growth. Job openings, a measure of labor demand, increased 168,000 to a seasonally adjusted 5.1 million, the Labor Department said in its monthly Job Openings and Labor Turnover Survey on Tuesday. The so-called JOLTS report is one of the indicators being closely watched by Federal Reserve officials as they contemplate raising interest rates this year.