Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung cam » trung tam, trung cap, trung nam
cam nhung » cam hung, nam nhung, tham nhung
ho chieu » hoc thieu, doi chieu, mot chieu
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
bang cac » nang cao, hang ca, dung cac

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 (theo chieu)) sach - thanh trung cam nhung ((cong ban) OR (cong san)) bang cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - thanh trung cam nhung ((cong ban) OR (cong san)) bang cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sach - thanh trung cam nhung ((cong ban) OR (cong san)) bang cac".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - thanh trung cam nhung ((cong ban) OR (cong san)) bang cac*.