Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
canh huong » anh huong, canh duong, manh huong
hoc thieu » toc thieu, hoc hien
luat canh » luat doanh, luat kinh, luc canh
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, dang thanh
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 - canh trinh luat canh huong ((dan toan) or (((dan than) OR (van than)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh luat canh huong ((dan toan) OR (((dan than) OR (van than)))) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh trinh luat canh huong ((dan toan) or (((dan than) OR (van than)))) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh luat canh huong ((dan toan) or (((dan than) OR (van than)))) cau*.