Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cuong quan » vuong quan, luong quang, thong quan
luong quan » thong quan, duong qua
hoc thieu » toc thieu, hoc hien
cong bang » cuong bang, dong bang, hong bang
cong tan » cong tac, cong san, cong thanh
toan tap » toan ban

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 ((cuong quan) or (luong quan)) nhung ((cong bang) or (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((cuong quan) OR (luong quan)) nhung ((cong bang) OR (cong tan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((cuong quan) or (luong quan)) nhung ((cong bang) or (cong tan)) toan tap*.