Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nang cong » nang song, dang cong, bang cong
dan thanh » dang thanh, danh thanh, ban thanh
thanh hai » thanh phan, thanh hoa, thanh san
dung van » duong van, dung va, dang van
van nang » van quang, van ban, van dong
cong dan » cong san, cong tan, huong dan

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 xanh) or (chieu sach)) - sach dung van nang cong dan thanh hai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - sach dung van nang cong dan thanh hai.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - sach dung van nang cong dan thanh hai*.