Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong quang » luong quang, thong quang, duong quang
doi chieu » doc hieu, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong van » cong vang, cong san, song van
toan tap » toan ban
doi chi » doi khi

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 (doi chi)) sang - hanh tranh cua nhung ((cong van) OR (cong quang)) toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) OR (doi chi)) sang - hanh tranh cua nhung ((cong van) or (cong quang)) toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) OR (doi chi)) sang - hanh tranh cua nhung ((cong van) or (cong quang)) toan tap*.