Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
bang cong » dang cong, bang song, hang cong
trang va » hang va
tran van » luan van
cong anh » cong danh, dong anh, hong anh
tuan ban » tuan bang, toan ban, luan ban

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)) - hanh ((trang va) or (tran van)) bang cong anh tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sach)) - hanh ((trang va) OR (tran van)) bang cong anh tuan ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sach)) - hanh ((trang va) or (tran van)) bang cong anh tuan ban*.