Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
quang tuan » quang thanh, quan luan, quang cua
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
tung tuan » trung tuan, hung tuan, trang tuan
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: doi chieu sach - thanh ((tung tuan) or (quang tuan)) ((nhung cong) OR (thong cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - thanh ((tung tuan) OR (quang tuan)) ((nhung cong) OR (thong cong)) dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - thanh ((tung tuan) or (quang tuan)) ((nhung cong) OR (thong cong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh ((tung tuan) or (quang tuan)) ((nhung cong) OR (thong cong)) dan than cau*.