Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
luan hung » luan chung, lan hung, luan ung
hung cong » nhung cong, hung cuong, phung cong
theo chu » theo chieu, cho chu, chao chu
chu sach » cau sach, thu sach, chieu sach
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van 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 sach - ((hanh trang) or (hanh trinh)) luan hung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu sach - ((hanh trang) OR (hanh trinh)) luan hung cong tan toan ban.
• Adding a wildcard symbol may retrieve word variants: theo chu sach - ((hanh trang) or (hanh trinh)) luan hung cong tan toan ban*.