Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
doc hieu » toc thieu, hoc hien
trung va » truong va, trang va, trung ha
cong ban » cong bang, cong san, cong tan
ban danh » ban doanh, ban hanh, ban dan
danh dau » lanh dao, hang dau, danh tu
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: ((doc hieu) OR (hoc thieu)) xanh - thanh trung va dung cong ban danh dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (hoc thieu)) xanh - thanh trung va dung cong ban danh dau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (hoc thieu)) xanh - thanh trung va dung cong ban danh dau*.