Perhaps you should try some spelling variations:
chung duong » chuong duong, phuong duong, hung vuong
theo chieu » theo tieu, theo chu, thi chieu
hanh trinh » canh tranh, hanh chinh
luat chung » luan chung, luat thuong, cua chung
minh toan » tinh toan, minh tuan, hinh toan
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » hoc thieu, doi chieu, mot chieu

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 - hanh trinh luat chung duong ((minh toan) OR (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - hanh trinh luat chung duong ((minh toan) OR (manh toan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sach - hanh trinh luat chung duong ((minh toan) OR (manh toan)) cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - hanh trinh luat chung duong ((minh toan) OR (manh toan)) cau*.