Perhaps you should try some spelling variations:
chiet tach » chieu sach
dung cong » dung trong
chu xanh » chu manh, chieu xanh, chua xang
mang cua » manh cua, dung cua, cong cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban
ban cua » ban quan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chiet tach)) - hanh ((mang cua) OR (ban cua)) dung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chiet tach)) - hanh ((mang cua) OR (ban cua)) dung cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu xanh) or (chiet tach)) - hanh ((mang cua) OR (ban cua)) dung cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chiet tach)) - hanh ((mang cua) OR (ban cua)) dung cong dan toan tap*.