Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
cong lang » cong vang, cong luong, cong quang
lang than » lang thang, lang thanh, sang than
hanh ban » thanh ban, hang ban, hanh san
qua dung » quang dung, su dung, qua song
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: theo chieu xanh - hanh ban ((cua cong) or (qua dung)) cong lang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh ban ((cua cong) OR (qua dung)) cong lang than cau.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh ban ((cua cong) or (qua dung)) cong lang than cau*.