Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thanh tung » thanh cong
thuong dan » huong dan, thuong dam, thuong lan
thuong han » thuong mai, thuong va, thuong gap
tung tuan » trung tuan, hung tuan, quang tuan
tuan dang » tran dang, tuan bang, tuan dung
ho chieu » hoc thieu, doi chieu, mot chieu
than cau » toan cau, phan cau, than cap

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 tung tuan dang ((thuong dan) OR (thuong han)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - thanh tung tuan dang ((thuong dan) OR (thuong han)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sach - thanh tung tuan dang ((thuong dan) OR (thuong han)) than cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - thanh tung tuan dang ((thuong dan) OR (thuong han)) than cau*.