Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, doi chi, ho chieu
van thanh » ban thanh, van tuan
thanh dau » thanh dat, thanh dam, thanh mau
va thong » va thuong, va phuong, va cong
cong van » cong vang, cong san, song van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chieu)) xanh - canh trinh ((va thong) OR (he thong)) cong van thanh dau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (doi chieu)) xanh - canh trinh ((va thong) OR (he thong)) cong van thanh dau~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chieu)) xanh - canh trinh ((va thong) OR (he thong)) cong van thanh dau*.