Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
phung cong » nhung cong, phong cong, nhung chong
nhan thuc » nhan luc, toan thuc
cong than » cong thanh, cong thang, cong tan
than phan » thanh phan, toan phan, thanh pham
dan thuc » dan toc, am thuc
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 ((chieu xanh) OR (chieu sang)) - tinh ((nhan thuc) or (dan thuc)) phung cong than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - tinh ((nhan thuc) OR (dan thuc)) phung cong than phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - tinh ((nhan thuc) or (dan thuc)) phung cong than phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu sang)) - tinh ((nhan thuc) or (dan thuc)) phung cong than phan cac*.