Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung gian » truong giang, truong giao, trong giang
doan duong » doan cuong, doan huong, doan phuong
dan duong » dan dung, van duong, dai duong
ho chieu » hoc thieu, doi chieu, mot chieu
tan san » tai san, tan van, han san
san cau » van cau, ban cau, can cau

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