Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thieu anh » thien anh, thien danh, thieu nhi
thuc hung » thuc chung, thuc nhung, thuc cung
thuc dung » thuoc dung, thuy dung, tuc dung
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
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: hoc ((thieu anh) or (chieu xanh)) - tinh toan ((thuc hung) or (thuc dung)) cong tan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (chieu xanh)) - tinh toan ((thuc hung) OR (thuc dung)) cong tan phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) or (chieu xanh)) - tinh toan ((thuc hung) or (thuc dung)) cong tan phan cac*.