Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
luan nhung » luan hung, quan nhung, luan phuong
luan chung » luan chinh
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban
ha tinh » may tinh
va tinh » may tinh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((ha tinh) OR (va tinh)) - hanh tranh ((luan nhung) OR (luan chung)) cong tan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((ha tinh) or (va tinh)) - hanh tranh ((luan nhung) OR (luan chung)) cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: ho ((ha tinh) or (va tinh)) - hanh tranh ((luan nhung) OR (luan chung)) cong tan toan tap*.