Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
hanh luan » khanh luan, hang luan, hanh luat
van thanh » ban thanh, van tuan
chu xanh » chieu xanh, chua xang, chuc danh
chu manh » ho manh, chu han, chu van
bai toan » bai tap
va toan » van toan, tap toan, va thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chu manh)) - hanh luan van thanh thuong ((va toan) OR (bai toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu manh)) - hanh luan van thanh thuong ((va toan) OR (bai toan)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chu manh)) - hanh luan van thanh thuong ((va toan) OR (bai toan)) ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu manh)) - hanh luan van thanh thuong ((va toan) OR (bai toan)) ban*.