Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
toan ban » van ban
cong ly » cong ty, cong li, cong my
ly toan » le toan, ly hoan, ly tran
luan » quan, lan

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 ((tran van) OR (luan van)) nhung cong ly toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) OR (chieu sang)) - hanh ((tran van) OR (luan van)) nhung cong ly toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) OR (chieu sang)) - hanh ((tran van) OR (luan van)) nhung cong ly toan ban*.