Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
thieu anh » thien anh, thien danh, thieu nhi
nhan thuc » nhan luc, dan thuc
toan thuc » toan hoc, dan thuc
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: hoc ((thieu anh) or (chieu xanh)) - tinh ((nhan thuc) OR (toan thuc)) nhung cong than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (chieu xanh)) - tinh ((nhan thuc) OR (toan thuc)) nhung cong than phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu anh) or (chieu xanh)) - tinh ((nhan thuc) OR (toan thuc)) nhung cong than phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) or (chieu xanh)) - tinh ((nhan thuc) OR (toan thuc)) nhung cong than phan cac*.