Perhaps you should try some spelling variations:
luan nhung » luan hung, luan phuong, cua nhung
luan chung » luan chinh
quan nhung » qua nhung, cua nhung, quang hung
hanh tang » hanh trang, anh tang, hanh mang
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - hanh tang ((((luan nhung) OR (luan chung))) OR (quan nhung)) cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - hanh tang ((((luan nhung) OR (luan chung))) OR (quan nhung)) cong tac toan cau*.