Perhaps you should try some spelling variations:
thanh trinh » thanh tinh, thanh binh, thanh trung
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
dong cong » duong cong, dung cong, dang cong
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: theo chieu sach - ((hanh trinh) or (thanh trinh)) cua dong cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh trinh) OR (thanh trinh)) cua dong cong dan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh trinh) or (thanh trinh)) cua dong cong dan toan cao*.