Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
canh doanh » chinh doanh, doanh doanh, kinh doanh
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
cua nong » cuu nong, cua dong, cua song
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan dau » phan dau, han dau, chan doan

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 - ((canh doanh) or (hanh doanh)) ((cua cong) or (cua nong)) cong tan chan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((canh doanh) OR (hanh doanh)) ((cua cong) OR (cua nong)) cong tan chan dau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((canh doanh) or (hanh doanh)) ((cua cong) or (cua nong)) cong tan chan dau*.