Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thuc phung » thuc nhung, thu phuong, duc phung
thuc chung » thuc cung, thuc nhung, thung chung
hoc chieu » hoc thieu, ho chieu, hoc hien
cong than » cong thanh, cong thang, cong tan
phan cac » phan dau, phan lap, phan van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - tinh toan ((thuc phung) OR (thuc chung)) cong than ((phan cac) OR (nhan cach))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - tinh toan ((thuc phung) or (thuc chung)) cong than ((phan cac) OR (nhan cach))~".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - tinh toan ((thuc phung) or (thuc chung)) cong than ((phan cac) OR (nhan cach))*.