Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thang » cong thanh, cang thang, cong thong
hoc chung » hoc chuong, ho chung, hoc nhung
cong than » cong thanh, cong tan, cong thai
ho chieu » theo chieu, hoc thieu, mot chieu
toan hoc » toan khoa, van hoc, hoa hoc
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: ho chieu xanh - tinh toan hoc chung ((cong than) or (cong thang)) phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - tinh toan hoc chung ((cong than) OR (cong thang)) phan cac.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - tinh toan hoc chung ((cong than) or (cong thang)) phan cac*.