Perhaps you should try some spelling variations:
trung cuong » trung uong, trung duong, trong chuong
thanh trung » thanh tung
cuong dung » tuong duong, ung dung, thong dung
toc chieu » doc hieu, hoc thieu, doi chieu
cac toan » cac khoan, hach toan, cac thanh
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc chieu) or (toc thieu)) xanh - thanh trung cuong dung trong cac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc chieu) OR (toc thieu)) xanh - thanh trung cuong dung trong cac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((toc chieu) or (toc thieu)) xanh - thanh trung cuong dung trong cac toan cau*.