Perhaps you should try some spelling variations:
hoan chinh » hanh chinh, hoa hinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
dong cong » duong cong, dung cong, dang cong
san chang » dan chan, van khang, san chay
cua dong » chua dong, cua cong, cua dang
san chan » dan chan, san chay, ban chan
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 cua dong cong ((((san chan) OR (san chang))) or (ban hang)) doan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoan chinh sach - hanh tranh cua dong cong ((((san chan) OR (san chang))) OR (ban hang)) doan.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoan chinh sach - hanh tranh cua dong cong ((((san chan) OR (san chang))) or (ban hang)) doan".
• Adding a wildcard symbol may retrieve word variants: hoan chinh sach - hanh tranh cua dong cong ((((san chan) OR (san chang))) or (ban hang)) doan*.