Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, nhung don
tung tuan » trung tuan, hung tuan, quang tuan
hang cong » dang cong, hang nong, bang cong
chi sach » chinh sach, chieu sach, co sach
sat phan » vat phan, xuat phan, va phan
sat nhan » hat nhan, ca nhan, tao nhan
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 tung tuan ((nhung cong) OR (hang cong)) ((sat phan) or (sat nhan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - thanh tung tuan ((nhung cong) OR (hang cong)) ((sat phan) OR (sat nhan)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi sach - thanh tung tuan ((nhung cong) OR (hang cong)) ((sat phan) or (sat nhan)) cau".
• Adding a wildcard symbol may retrieve word variants: doi chi sach - thanh tung tuan ((nhung cong) OR (hang cong)) ((sat phan) or (sat nhan)) cau*.