Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
hoc thieu » toc thieu, hoc hien
luan dung » luan dong, luan hung, luan ung
doc hieu » toc thieu, hoc hien
lan dung » van dung, dan dung, lan hung
cong san » cong tac
san chan » san chang, dan chan, san chay
chan ta » chan tha, nhan tai, nhan tao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc thieu)) xanh - hanh doanh ((luan dung) OR (lan dung)) cong san chan ta~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc thieu)) xanh - hanh doanh ((luan dung) OR (lan dung)) cong san chan ta.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (hoc thieu)) xanh - hanh doanh ((luan dung) OR (lan dung)) cong san chan ta".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc thieu)) xanh - hanh doanh ((luan dung) OR (lan dung)) cong san chan ta*.