Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
mang luan » tang luan, bang luan, mong luan
hang luan » tang luan, dung luan
cong vang » cong lang, cong quang, cong ngang
cong van » cong san, song van, cong tan
phan dau » phan tu, hang dau

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 - cach ((mang luan) or (hang luan)) nhung ((cong van) OR (cong vang)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - cach ((mang luan) OR (hang luan)) nhung ((cong van) OR (cong vang)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - cach ((mang luan) or (hang luan)) nhung ((cong van) OR (cong vang)) phan dau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - cach ((mang luan) or (hang luan)) nhung ((cong van) OR (cong vang)) phan dau*.