Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hoa chinh » hoan chinh, hoa hinh, hoc chinh
ho chinh » hoc chinh, cho chinh, do chinh
tran van » luan van
van hang » van khang, van hoang, van thang
cong san » cong tac
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chinh) OR (hoa chinh)) sach - thanh tran van hang ((cong dong) or (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chinh) OR (hoa chinh)) sach - thanh tran van hang ((cong dong) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chinh) OR (hoa chinh)) sach - thanh tran van hang ((cong dong) or (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho chinh) OR (hoa chinh)) sach - thanh tran van hang ((cong dong) or (cong san)) toan cao*.