Perhaps you should try some spelling variations:
doi chieu » doi chi, ho chieu, mot chieu
canh manh » lanh manh, canh tranh, cach mang
duong van » duong va, luong va, trong van
doc hieu » toc thieu, hoc thieu, hoc hien
manh cua » doanh cua, ban cua
dang van » hoang van, hang va
toan tap » toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (doc hieu)) sach - canh manh cua cong ((duong van) or (dang van)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doc hieu)) sach - canh manh cua cong ((duong van) OR (dang van)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doc hieu)) sach - canh manh cua cong ((duong van) or (dang van)) toan tap*.