Perhaps you should try some spelling variations:
manh tuong » manh tung, manh cuong, minh tuong
tang duong » tang cuong, tang dong, tuong duong
duong manh » duong van
doi chieu » doc hieu, doi chi, mot chieu
tuong cua » truong cua, huong cua, thong cua
ho chieu » theo chieu, hoc thieu, mot chieu
cua tang » cua dang, cua hang, ca tang
toan cao » toan ban
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: ((ho chieu) OR (doi chieu)) sach - manh tuong cua tang duong manh ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) sach - manh tuong cua tang duong manh ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) sach - manh tuong cua tang duong manh ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) sach - manh tuong cua tang duong manh ((toan cao) or (toan tap))*.