Perhaps you should try some spelling variations:
cong thang » cong thanh, cang thang, cong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
thang phan » thanh phan, thong phan, than phan
thieu anh » thien anh, thien danh, thieu nhi
dung cong » dung trong
tinh dan » trinh dan, tinh da, binh dan
tuc dung » thuc dung, tac dung, duc dung
phan cac » nhan cach, phan dau, phan lap
dan tuc » dan thuc, dan toc, dao tuc

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 dan tuc dung cong thang phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (chieu xanh)) - tinh dan tuc dung cong thang phan cac.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) or (chieu xanh)) - tinh dan tuc dung cong thang phan cac*.