Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
tram van » tran van, tam van, trang van
cong tac » cong ty
tac phat » tac pham, tam phat, tan phat
phat tap » pha tap, phan tap, pham tai
dam van » dao van, pham van, dang van
nam van » nam dan, nam va, pham van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - hanh ((tram van) or (((dam van) or (nam van)))) hang cong tac phat tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((tram van) OR (((dam van) OR (nam van)))) hang cong tac phat tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((tram van) or (((dam van) or (nam van)))) hang cong tac phat tap*.