Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - tinh toan ((thuc hung) OR (thuc dung)) cong than phan cac~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - tinh toan ((thuc hung) OR (thuc dung)) cong than phan cac*.