Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
dung cong » dung trong
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan
phan dau » hang dau
tinh va » tich va, trinh van, trinh vat
va dung » van dung, va duong, vat dung

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 tinh va dung cong dan ((thanh lap) or (((phan dau) or (phan tu))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh tinh va dung cong dan ((thanh lap) OR (((phan dau) OR (phan tu)))).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh tinh va dung cong dan ((thanh lap) or (((phan dau) or (phan tu))))*.