Internet giant Yahoo Inc is committed to grow its operating margin to 15-20% over the next three years from 6 percent currently, CEO Carol Bartz said on Tuesday.

Bartz described the current operating margin of 6% as "terrible, terrible".

Yahoo, the top US seller of online display ads, will eye growth in Southeast Asian markets such as Indonesia and Vietnam, she said at a lunch talk organised by the American Chamber of Commerce in Singapore.

Microsoft Corp said on November 5 its search engine partnership with Yahoo would not be limited to the United States but would be introduced around the world, once it gets regulatory approval.

Microsoft and Yahoo had earlier this year signed a 10-year global Web search partnership to challenge market leader Google Inc, a pact that US and European antitrust regulators are evaluating.