Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
luan thong » luan phong, luan tuong, luat thong
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
thong tan » thong than, thong tran, thong tin
tran ban » tranh ban, tran van, toan 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 sang)) - ((hanh dung) OR (hanh dong)) luan thong thong tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu sang)) - ((hanh dung) OR (hanh dong)) luan thong thong tan tran ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - ((hanh dung) OR (hanh dong)) luan thong thong tan tran ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - ((hanh dung) OR (hanh dong)) luan thong thong tan tran ban*.