Perhaps you should try some spelling variations:
luan chinh » luan chi, hoan chinh, luat hinh
luan tuong » luan luong, luat thuong, xuan truong
chua xang » chua nang, chuc nang, chu bang
hanh dung » thanh dung, anh dung, hanh dong
cua chua » sua chua, cua chu, cua nhua
tan toan » tan tran, van toan, dan toan
tap toan » tap doan, tap quan, bai toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: cua chua xang - hanh dung ((luan tuong) or (luan chinh)) cong ((tan toan) OR (tap toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cua chua xang - hanh dung ((luan tuong) OR (luan chinh)) cong ((tan toan) OR (tap toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cua chua xang - hanh dung ((luan tuong) or (luan chinh)) cong ((tan toan) OR (tap toan)) cao".
• Adding a wildcard symbol may retrieve word variants: cua chua xang - hanh dung ((luan tuong) or (luan chinh)) cong ((tan toan) OR (tap toan)) cao*.