Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu xanh » chieu xanh, hieu manh, thien anh
hong cuong » hong vuong, hung cuong, thong chuong
cuong sang » cuong bang, luong sang, muong sang
canh tinh » hanh tinh, manh tinh, canh tranh
sang toan » sang than, dang toan, quang toan
tinh van » trinh van, dinh van, tinh va
van hong » van phong, van hoang, van huong
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: hoc ((thieu xanh) or (thien thanh)) - canh tinh van hong cuong sang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien thanh)) - canh tinh van hong cuong sang toan cao*.