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Last name เธียรสวัสดิ์ (เธียรสวัสดิ์ , Thernsawas, Theansawat ) , all around the world, is a very rare surname. The cognomen เธียรสวัสดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
VARIANT | COUNTRY |
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Theansawas, เธียรสวัสดิ์, Theansawat | Thailand |
Thiansawat, and Thiensawat