Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
thuyet danh » thuyet anh, khuyet danh, thuyet canh
thuyet dan » thuyet va, thuyet bai, truyen dan
truong cua » truong ca, truong quan, truong cao
cua trong » cua truong, cua trung, qua trong
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thuyet danh) OR (thuyet dan)) - hanh truong cua trong cong ((dan toan) or (dan than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuyet danh) OR (thuyet dan)) - hanh truong cua trong cong ((dan toan) OR (dan than)) ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thuyet danh) OR (thuyet dan)) - hanh truong cua trong cong ((dan toan) or (dan than)) ban*".