Perhaps you should try some spelling variations:
truong huong » truong phuong, truong thuong, truong vuong
tranh quang » tran quang, trinh quang, tinh quang
trung huong » trung uong, trung duong, trung hung
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
van than » van thanh, van thang, van tuan
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 quang ((trung huong) OR (truong huong)) van than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - hanh tranh quang ((trung huong) OR (truong huong)) van than ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doi chieu)) sach - hanh tranh quang ((trung huong) OR (truong huong)) van than ban*".