Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhan dang » nhan dan, phan dang, tran dang
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man
dang va » dang van, dang vat, hang va
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((thuc hanh) or (((chieu xanh) OR (chieu sang)))) - nhan dang va nang cong dan than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thuc hanh) OR (((chieu xanh) OR (chieu sang)))) - nhan dang va nang cong dan than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((thuc hanh) or (((chieu xanh) OR (chieu sang)))) - nhan dang va nang cong dan than ban".
• Adding a wildcard symbol may retrieve word variants: theo ((thuc hanh) or (((chieu xanh) OR (chieu sang)))) - nhan dang va nang cong dan than ban*.