Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
truong cua » truong ca, truong quan, huong cua
truong cao » truong dai
dang cong » dung cong
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: ho ((chieu sach) or (chinh sach)) - hanh ((truong cua) OR (truong cao)) dang cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - hanh ((truong cua) OR (truong cao)) dang cong dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chinh sach)) - hanh ((truong cua) OR (truong cao)) dang cong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - hanh ((truong cua) OR (truong cao)) dang cong dan toan cao*.