Perhaps you should try some spelling variations:
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
vat nhung » va nhung, vap nhung, vai nhung
hoi hieu » hoi phieu, hoi tieu, moi hieu
cong dan » cong san, cong tan, huong dan
dan canh » van canh, dan cach, dan hanh
canh cau » canh chau, can cau, danh cau
ho hieu » ho chieu, nho hieu, co hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho hieu) or (hoi hieu)) lang - ((canh trinh) OR (hanh trinh)) vat nhung cong dan canh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (hoi hieu)) lang - ((canh trinh) OR (hanh trinh)) vat nhung cong dan canh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) or (hoi hieu)) lang - ((canh trinh) OR (hanh trinh)) vat nhung cong dan canh cau".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) or (hoi hieu)) lang - ((canh trinh) OR (hanh trinh)) vat nhung cong dan canh cau*.