Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh hung » thanh huong, thanh tung, thanh trung
hung luong » hung vuong, dung luong, hang luong
hoc thieu » toc thieu, hoc hien
hung tran » huong tran, quang tran, hung thang
tran hung » tran hong, tran quang, tran hoang
tai toan » tap toan, tai tuan, tam toan
bai toan » bai 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 - thanh hung tran hung luong ((tai toan) or (bai toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh hung tran hung luong ((tai toan) OR (bai toan)) tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh hung tran hung luong ((tai toan) or (bai toan)) tap*.