Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
hoc thieu » toc thieu, hoc hien
tranh van » tran van, trinh van, thanh van
nang cong » nang song, dang cong, bang cong
manh toan » thanh toan, anh tuan
van nang » van quang, van ban, van dong

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: ((doi chieu) OR (hoc thieu)) xanh - hanh tranh van nang cong ((manh toan) OR (tinh toan)) ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (hoc thieu)) xanh - hanh tranh van nang cong ((manh toan) OR (tinh toan)) ban~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc thieu)) xanh - hanh tranh van nang cong ((manh toan) OR (tinh toan)) ban*.