Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh hang » thanh hang, hang hang, hanh han
bang cong » bang song, hang cong, dung cong
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tac than » tac thanh, tam than, tac nhan
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: ho chieu xanh - ((hanh hang) or (cang thang)) va ((bang cong) or (dang cong)) tac than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((hanh hang) OR (cang thang)) va ((bang cong) OR (dang cong)) tac than cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh hang) or (cang thang)) va ((bang cong) or (dang cong)) tac than cau*.