Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
lanh hanh » lanh manh, lenh hanh, xanh hanh
thanh bac » nhanh bac, thanh bai, thanh san
va thong » va thuong, va phuong, va cong
cong san » cong tac
than ban » thanh ban, toan ban, than man

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - lanh hanh ((va thong) OR (he thong)) cong san ((than ban) OR (thanh bac))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - lanh hanh ((va thong) OR (he thong)) cong san ((than ban) or (thanh bac))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - lanh hanh ((va thong) OR (he thong)) cong san ((than ban) or (thanh bac))*.