Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doanh nang » doanh sang, doanh nhung, doanh quang
thuong dan » thuong han, thuong dam, thuong lan
hoc chieu » hoc thieu, ho chieu, hoc hien
nang duc » nang luc, nang doc, nang du
duc cong » duc cuong, nuoc cong, chuc cong
than cau » toan cau, phan cau, than cap

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 - doanh nang duc cong ((thuong dan) or (huong dan)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - doanh nang duc cong ((thuong dan) OR (huong dan)) than cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - doanh nang duc cong ((thuong dan) or (huong dan)) than cau*.