Perhaps you should try some spelling variations:
theo chieu » ho chieu, theo chu, thi chieu
thanh tung » thanh cong
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
gian cao » gian cac, gian co, giai cao
tung va » trung va, tuong va, dung va
va tong » va thong, va tuong, va trong

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 (theo tieu)) sach - thanh tung va tong ((cong dan) OR (cong san)) gian cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - thanh tung va tong ((cong dan) OR (cong san)) gian cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) sach - thanh tung va tong ((cong dan) OR (cong san)) gian cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sach - thanh tung va tong ((cong dan) OR (cong san)) gian cao*.