Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
tranh vat » trinh vat, tranh va, tranh van
cong than » cong thanh, cong thang, cong thai
vat dung » van dung, va dung, viet dung
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
phan cau » phan dau, phan cac, phan tu

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 - canh tranh vat dung ((cong than) or (((cong tan) or (cong tac)))) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - canh tranh vat dung ((cong than) OR (((cong tan) OR (cong tac)))) phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh vat dung ((cong than) or (((cong tan) or (cong tac)))) phan cau*.