Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap
dang va » dang van, dang vat, hang va
bang va » hang va, ban va, trang va

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) or (chieu tinh)) - nhanh ((dang va) or (bang va)) thong cong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu tinh)) - nhanh ((dang va) OR (bang va)) thong cong dan than cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu tinh)) - nhanh ((dang va) or (bang va)) thong cong dan than cau*.