Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
tong cong » trong cong, cong cong, dung cong
cong toan » cong tan, cong hoan, cong doan
cong tuan » cong tan, cong luan, cong thanh
chi danh » chi dan, chi anh, chi dinh
doi chi » doi khi
va tong » va thong, va tuong, va trong

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi danh - ((canh tranh) or (hanh trinh)) va tong cong ((cong toan) OR (cong tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi danh - ((canh tranh) OR (hanh trinh)) va tong cong ((cong toan) OR (cong tuan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi danh - ((canh tranh) or (hanh trinh)) va tong cong ((cong toan) OR (cong tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: doi chi danh - ((canh tranh) or (hanh trinh)) va tong cong ((cong toan) OR (cong tuan)) cao*.