Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
tang cua » mang cua, hang cua, tang luan
manh cua » doanh cua, ban cua
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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