Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chua xang » chua nang, chuc nang, chu bang
cua thong » cua thuong, cua khong, cua tong
thong dan » thong van, tuong dan, thong den
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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 (chua xang)) - anh tang cua thong thong dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chua xang)) - anh tang cua thong thong dan than cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chua xang)) - anh tang cua thong thong dan than cau*.