Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
truong ca » truong cao, trong ca, truong dai
truong va » truong dai, truong cao, truong dao
dan than » dan chan, ban than, dan toan
van than » van thanh, van thang, van tuan

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