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
hanh trang » canh tranh, hanh trinh, minh trang
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
than cao » thai cao, than cap, than sao
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 trang) or (thanh trung)) cua dung cong dan ((than cao) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((hanh trang) OR (thanh trung)) cua dung cong dan ((than cao) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((hanh trang) or (thanh trung)) cua dung cong dan ((than cao) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((hanh trang) or (thanh trung)) cua dung cong dan ((than cao) OR (toan cao))*.