Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
doc hieu » hoc thieu, hoc hien
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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