Perhaps you should try some spelling variations:
phuong dan » phuong danh, phuong doan, huong dan
chieu sach » chiet tach, chieu sang, chieu xanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua bang » chua bang, cua ban, cua dang
dan toan » van toan, dan than, manh toan
toan ban » van 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 sach) or (chinh sach)) - hanh tang cua bang phuong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh tang cua bang phuong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - hanh tang cua bang phuong dan toan ban*.