Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu tinh » trieu tinh, lieu tinh, chau tinh
doi chieu » doc hieu, doi chi, ho chieu
vat dung » va dung, viet dung, mat duong
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan

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 - thanh trung ((vat dung) or (van dung)) cong tan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - thanh trung ((vat dung) OR (van dung)) cong tan phan tu.
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - thanh trung ((vat dung) or (van dung)) cong tan phan tu*.