Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
song van » hoang van, trong van, duong van
toan tap » toan ban
manh he » manh ho, hanh he, manh ha
manh le » thanh le

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 - canh ((manh he) or (manh le)) thong ((cong tan) or (song van)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh ((manh he) OR (manh le)) thong ((cong tan) OR (song van)) toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh ((manh he) or (manh le)) thong ((cong tan) or (song van)) toan tap*.