Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
ma nhung » va nhung, a nhung, me nhung
la nhung » lam nhung, va nhung, a nhung
cong bai » cuong bai, cong hai, cung bai
tap cau » tap cac, tao cau, ta 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 (doc hieu)) sach - thanh thuong ((ma nhung) OR (la nhung)) cong bai tap cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) sach - thanh thuong ((ma nhung) OR (la nhung)) cong bai tap cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (doc hieu)) sach - thanh thuong ((ma nhung) OR (la nhung)) cong bai tap cau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) sach - thanh thuong ((ma nhung) OR (la nhung)) cong bai tap cau*.