Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua
dung cong » dung trong
manh cua » doanh cua, ban cua
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: theo chieu sach - hanh ((tranh cua) OR (manh cua)) dung cong dan than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - hanh ((tranh cua) OR (manh cua)) dung cong dan than cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((tranh cua) OR (manh cua)) dung cong dan than cao*.