Perhaps you should try some spelling variations:
thanh tung » thanh cong
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
cong tan » cong tac, cong san, cong thanh
thai cao » thoai cac, thuat cao, toan cao
co lieu » cot lieu, co hieu, so lieu
va dung » van dung, va duong, vat dung
tai cao » tao cao, tai sao, tai cac

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

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