Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
luan toan » luan hoan, xuan toan, luan thanh
toan cong » tran cong, toan thong, doan cuong
san chan » san chang, dan chan, ban chan
san chay » san pham, van chat, dan chan

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 - ((hanh doanh) or (toan doanh)) luan toan cong ((san chan) OR (san chay)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((hanh doanh) OR (toan doanh)) luan toan cong ((san chan) OR (san chay)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((hanh doanh) or (toan doanh)) luan toan cong ((san chan) OR (san chay)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((hanh doanh) or (toan doanh)) luan toan cong ((san chan) OR (san chay)) cau*.