Perhaps you should try some spelling variations:
manh truong » manh trung, manh tuong, anh truong
truong cua » truong ca, truong quan, truong cao
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
vang toan » van toan, dang toan, quang toan
ho chieu » theo chieu, hoc thieu, mot chieu
toan cao » toan ban, toan tap

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 (ho chieu)) sach - manh truong cua ((dang cong) or (dung cong)) vang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - manh truong cua ((dang cong) OR (dung cong)) vang toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (ho chieu)) sach - manh truong cua ((dang cong) or (dung cong)) vang toan cao".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (ho chieu)) sach - manh truong cua ((dang cong) or (dung cong)) vang toan cao*.