Perhaps you should try some spelling variations:
thanh tung » thanh cong
dung cong » dung trong
yen tinh » tuyen tinh
cong dan » cong san, cong tan, huong dan
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao
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: ho ((yen tinh) or (trieu tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((yen tinh) OR (trieu tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((yen tinh) or (trieu tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thai cao".
• Adding a wildcard symbol may retrieve word variants: ho ((yen tinh) or (trieu tinh)) - ((thanh trung) OR (thanh tung)) va dung cong dan thai cao*.