Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh luan » doanh nhan
nhung cong » dung cong, thong cong, hang cong
toc thien » toc thieu, ton thien, duoc thien
thien anh » thien danh, tien anh, thien 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: toc thien anh - hanh doanh luan ((nhung cong) or (trong cong)) dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thien anh - hanh doanh luan ((nhung cong) OR (trong cong)) dan than ban*.