Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
cong quang » luong quang, thong quang, duong quang
cong ngang » cong nhan, cong lang, cong nong
hoc chieu » hoc thieu, ho chieu, hoc hien
cua nhung » va nhung
cong vang » cong lang, cong san, cong dong
anh dung » anh dong, anh huong, sach dung
dung cua » dung luan, dung cho
tuan cau » toan cau, quan cau, tuan cu

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 - anh dung cua nhung ((((cong vang) OR (cong quang))) or (cong ngang)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - anh dung cua nhung ((((cong vang) OR (cong quang))) OR (cong ngang)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - anh dung cua nhung ((((cong vang) OR (cong quang))) or (cong ngang)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - anh dung cua nhung ((((cong vang) OR (cong quang))) or (cong ngang)) tuan cau*.