Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu lang » chieu sang, hieu quang, nhieu tang
dang cong » dung cong
bang cua » mang cua, hang cua, tang cua
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
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 ((hieu lang) or (chieu sach)) - anh ((bang cua) or (ban cua)) dang cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu sach)) - anh ((bang cua) OR (ban cua)) dang cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (chieu sach)) - anh ((bang cua) or (ban cua)) dang cong dan than cau*.