Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
khong cong » thong cong, khong cang, chong cong
hanh tang » hanh trang, anh tang, hanh mang
hoa khong » khoi khong, hoa cong, he khong
chi sach » chinh sach, chieu sach, co sach
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
doi chi » doi khi

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 sach - ((hanh tang) or (((hanh trinh) or (canh tranh)))) hoa khong cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((hanh tang) OR (((hanh trinh) OR (canh tranh)))) hoa khong cong dan than ban.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((hanh tang) or (((hanh trinh) or (canh tranh)))) hoa khong cong dan than ban*.