Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhanh lang » nhanh quang, nhanh thang, nhanh dong
nhan dang » nhan dan, phan dang, tran dang
cong nong » cong dong, cong cong, cong trong
dan than » dan chan, ban than, van than
van tan » van tuan, van ban, van tai

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 - ((nhanh lang) OR (nhan dang)) cua cong nong ((van tan) or (dan than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - ((nhanh lang) OR (nhan dang)) cua cong nong ((van tan) OR (dan than)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - ((nhanh lang) OR (nhan dang)) cua cong nong ((van tan) or (dan than)) cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - ((nhanh lang) OR (nhan dang)) cua cong nong ((van tan) or (dan than)) cao*.