Perhaps you should try some spelling variations:
trung huong » truong huong, trung duong, trung hung
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh xuan » tran xuan, tranh luan, thanh xuan
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (doi chieu)) sach - hanh tranh xuan ((trung huong) OR (trung uong)) dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - hanh tranh xuan ((trung huong) OR (trung uong)) dan than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sach - hanh tranh xuan ((trung huong) OR (trung uong)) dan than ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doi chieu)) sach - hanh tranh xuan ((trung huong) OR (trung uong)) dan than ban*.