Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tuan » trung thanh, trung tam, tran tuan
thong cong » trong cong, tong cong, thong thong
nhung don » nhung van, nhung bo
chi sach » chinh sach, chieu sach, co sach
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac
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 trung tuan ((nhung don) or (thong cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh trung tuan ((nhung don) OR (thong cong)) dan than cap.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh trung tuan ((nhung don) or (thong cong)) dan than cap*.