Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trinh » canh tranh, hanh chinh
tong cong » trong cong, cong cong, dung cong
chao chu » cho chu, cua chu, cao cho
chu sach » cau sach, thu sach, chieu sach
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu sach - ((thanh trung) or (hanh trinh)) cua tong cong dan than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu sach - ((thanh trung) OR (hanh trinh)) cua tong cong dan than cao.
• Adding a wildcard symbol may retrieve word variants: chao chu sach - ((thanh trung) or (hanh trinh)) cua tong cong dan than cao*.