Perhaps you should try some spelling variations:
hanh trong » hanh trang, anh trong, hinh trong
thieu xanh » chieu xanh, thien anh, thien danh
nang luong » nang song
hieu manh » chieu xanh, hieu nganh, dieu hanh
trong ca » trong cac, trong nha
bai toan » bai tap
ca nang » cam nang, cao nang, cua nang
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: hoc ((thieu xanh) or (hieu manh)) - hanh trong ca nang luong ((va toan) or (bai toan)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh trong ca nang luong ((va toan) OR (bai toan)) ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - hanh trong ca nang luong ((va toan) or (bai toan)) ban*.