Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trong » anh trong, hanh trong, sanh trong
lanh trong » lang trong, anh trong, hanh trong
trong than » trong thanh, trong thuan, trong tan
doc chieu » doc hieu, doi chieu, toc thieu
ung trong » dung trong, cung trong, vung trong
than phan » thanh phan, toan phan, thanh pham
phan ung » phan xuong, phan cong
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc chieu tinh - ((canh trong) or (lanh trong)) phan ung trong than phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc chieu tinh - ((canh trong) OR (lanh trong)) phan ung trong than phan dau*.