Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh nhan » trinh phan, trinh nha, trinh nhap
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh han » trinh quan
thuc hung » thuc chung, thuc nhung, thuc dung
cong than » cong thanh, cong thang, cong thai
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu, hang dau

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