Perhaps you should try some spelling variations:
thanh luong » thanh long, thanh cuong, thanh duong
thanh huong » thanh hung, thanh cong, anh huong
chieu tinh » lieu tinh, chau tinh, kieu tinh
trong tinh » truong tinh, trong kinh, trong sinh
toan cao » toan ban, toan tap
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: theo ((chieu tinh) OR (trieu tinh)) - ((thanh luong) or (thanh huong)) va dung trong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (trieu tinh)) - ((thanh luong) OR (thanh huong)) va dung trong tinh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (trieu tinh)) - ((thanh luong) or (thanh huong)) va dung trong tinh toan cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (trieu tinh)) - ((thanh luong) or (thanh huong)) va dung trong tinh toan cao*.