Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thanh tra » thanh toan, thanh hoa
nhung don » nhung van, nhung bo
chi sach » chinh sach, chieu sach, co sach
tra xuan » tran xuan, tra quan, tran tuan
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu
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 - thanh tra xuan ((nhung don) or (thong cong)) dan ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh tra xuan ((nhung don) OR (thong cong)) dan ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh tra xuan ((nhung don) or (thong cong)) dan ((than cau) or (phan cau))*.