Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
canh trinh » canh tranh, canh tinh, anh trinh
truong dan » truong dang, truong danh, truong dao
luan nang » luan van, van nang, luan san
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - ((canh trinh) OR (hanh trinh)) luan nang ((truong dan) or (truong dai)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((canh trinh) OR (hanh trinh)) luan nang ((truong dan) OR (truong dai)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((canh trinh) OR (hanh trinh)) luan nang ((truong dan) or (truong dai)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((canh trinh) OR (hanh trinh)) luan nang ((truong dan) or (truong dai)) toan tap*.