Perhaps you should try some spelling variations:
canh trang » canh tranh, hanh trang, banh trang
lang thanh » dang thanh, tang thanh, lang thang
hieu manh » chieu xanh, hieu nganh, dieu hanh
dang toan » dang tran, dan toan, dung toan
hoc hieu » hoc thieu, hoc hien, doc hieu
va thong » va thuong, va phuong, va cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - canh trang ((va thong) or (he thong)) cong ((lang thanh) or (dang toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - canh trang ((va thong) OR (he thong)) cong ((lang thanh) OR (dang toan)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - canh trang ((va thong) or (he thong)) cong ((lang thanh) or (dang toan)) ban*.