Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, kieu tinh
thanh tung » thanh cong
chau tinh » cuu tinh, ha tinh, cua tinh
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
va dung » van dung, va duong, vat dung
dan thi » dang thi, tran thi, dinh thi
thi cao » thai cao, thi hao, thi bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu tinh) or (chau tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thi cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chau tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thi cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (chau tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thi cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chau tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thi cao*.