Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhieu tang » chieu sang, hieu lang, nhiet nang
thanh dung » thanh duong, thanh tung, thanh hung
luan cong » luat cong, luong cong, luan chung
cong cong » cong dong, trong cong, dung cong
toan phan » thanh phan, toan ban, hoa phan
tan phan » than phan, van phan, tai 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) or (nhieu tang)) - thanh dung luan cong cong ((tan phan) OR (toan phan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu tinh) OR (nhieu tang)) - thanh dung luan cong cong ((tan phan) OR (toan phan)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu tinh) or (nhieu tang)) - thanh dung luan cong cong ((tan phan) OR (toan phan)) tu".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu tinh) or (nhieu tang)) - thanh dung luan cong cong ((tan phan) OR (toan phan)) tu*.