Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
phap cong » phan cong, pham cong, phap phong
trung va » truong va, trang va, trung ha
cong dan » cong san, cong tan, huong dan
toan ban » van ban
va phap » va phat, ban phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - thanh trung va phap cong dan ((((toan tap) or (toan cao))) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - thanh trung va phap cong dan ((((toan tap) OR (toan cao))) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - thanh trung va phap cong dan ((((toan tap) or (toan cao))) or (toan ban))*.