Perhaps you should try some spelling variations:
toan phuong » doan phuong, tran phuong, toan thuong
phuong dan » phuong danh, phuong doan, huong dan
hieu manh » chieu xanh, hieu nganh, hien hanh
hanh tang » hanh trang, anh tang, hanh mang
tang cua » mang cua, hang cua, tang luan
cua toan » cuu toan, xuan toan, cua thanh
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (dieu hanh)) - hanh tang cua toan phuong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (dieu hanh)) - hanh tang cua toan phuong dan than ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (dieu hanh)) - hanh tang cua toan phuong dan than ban*.