Perhaps you should try some spelling variations:
hoan chinh » hanh chinh, hoa hinh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
san chan » san chang, dan chan, san chay
ban hang » ngan hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoan chinh sach - ((hanh tranh) OR (hanh trang)) cua dong cong ((san chan) or (ban hang)) doan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoan chinh sach - ((hanh tranh) OR (hanh trang)) cua dong cong ((san chan) OR (ban hang)) doan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoan chinh sach - ((hanh tranh) OR (hanh trang)) cua dong cong ((san chan) or (ban hang)) doan".
• Adding a wildcard symbol may retrieve word variants: hoan chinh sach - ((hanh tranh) OR (hanh trang)) cua dong cong ((san chan) or (ban hang)) doan*.