Perhaps you should try some spelling variations:
duong trong » dung trong
cong duong » cuong duong, cong dong, con duong
doi chieu » doc hieu, doi chi, mot chieu
ban thanh » ban hanh, ban hang
ho chieu » theo chieu, hoc thieu, mot chieu
than cap » khan cap, thanh lap, thanh cac
con tan » cong tan, con than, con tap

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 - thanh cong duong trong ((con tan) or (ban thanh)) than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - thanh cong duong trong ((con tan) OR (ban thanh)) than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - thanh cong duong trong ((con tan) or (ban thanh)) than cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - thanh cong duong trong ((con tan) or (ban thanh)) than cap*.