Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
thong cua » thong quan, thong tu, huong cua
hang cua » mang cua, hang ca, huong cua
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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 ((thong cua) or (hang cua)) nhung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh ((thong cua) OR (hang cua)) nhung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh ((thong cua) or (hang cua)) nhung cong dan van ban*.