Perhaps you should try some spelling variations:
tdanh trung » thanh trung, thanh tung, dang trung
danh trung » dang trung, dinh trung, manh trung
dung cong » dung trong
chi sach » chinh sach, chieu sach, co sach
cong ban » cong bang, cong san, cong tan
ban hanh » ban hang
hanh cau » nhanh cau, hang cau, hanh cac
doi chi » doi khi
va dung » van dung, va duong, vat dung

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 - ((((danh trung) or (tdanh trung))) or (hanh chinh)) va dung cong ban hanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - ((((danh trung) OR (tdanh trung))) OR (hanh chinh)) va dung cong ban hanh cau.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - ((((danh trung) or (tdanh trung))) or (hanh chinh)) va dung cong ban hanh cau*.