Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
bang cong » dang cong, bang song, hang cong
tung cap » trung cap, cung cap, thong cap
cap bang » cao bang, can bang, lap bang
san toan » van toan, manh toan, xuan toan
dan toan » van toan, dan than, manh toan

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 - thanh tung cap bang cong ((san toan) or (dan toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tung cap bang cong ((san toan) OR (dan toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung cap bang cong ((san toan) or (dan toan)) cau*.