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 cung
thuc dung » thuoc dung, thuy dung, tuc dung
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chieu sach)) - tinh toan ((thuc hung) OR (thuc dung)) cong than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - tinh toan ((thuc hung) OR (thuc dung)) cong than phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) or (chieu sach)) - tinh toan ((thuc hung) OR (thuc dung)) cong than phan cac".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chieu sach)) - tinh toan ((thuc hung) OR (thuc dung)) cong than phan cac*.