Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
ho chieu » hoc thieu, mot chieu, doi chieu
cong dan » cong san, cong tan, cong dong
chan lap » phan lap, thanh lap, dan lap

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

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