Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, chau tinh, kieu tinh
thanh tung » thanh cong
lieu tinh » trieu tinh, diep tinh, bien tinh
va duong » van duong, va tuong, va huong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
va dung » van dung, vat dung, va ung

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

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