Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
doanh hoan » doanh doanh, doanh khoa, doanh nhan
hoc thieu » toc thieu, hoc hien
luan hang » luan nang, luan han, luan hung
nong van » song van, nong dan, nong san
van chat » cao chat
van van » van ban, tan van, san van

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 - doanh hoan ((luan hang) or (luan van)) nong van van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - doanh hoan ((luan hang) OR (luan van)) nong van van chat*.