Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
thuc hung » thuc chung, thuc nhung, thuc dung
cong tang » cong thang, cong lang, cong vang
cong tan » cong tac, cong san, cong thanh
phan cac » nhan cach, phan dau, phan lap
tinh da » tinh va, tinh gia, tinh lao
da thuc » dan thuc, dai thuc, dam thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sach)) - tinh da thuc hung ((cong tan) or (cong tang)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - tinh da thuc hung ((cong tan) OR (cong tang)) phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - tinh da thuc hung ((cong tan) or (cong tang)) phan cac*.