Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
chat thong » chat chong, chat phong, chat trong
thong van » trong van, thong va, thong quan
van tuan » van quan, van ban, anh tuan
tuan tu » tuan thu, tran tu, toan tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: cao ((chieu sach) or (chiet tach)) - nhanh tinh chat thong thong van tuan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao ((chieu sach) OR (chiet tach)) - nhanh tinh chat thong thong van tuan tu.
• Adding a wildcard symbol may retrieve word variants: cao ((chieu sach) or (chiet tach)) - nhanh tinh chat thong thong van tuan tu*.