Perhaps you should try some spelling variations:
hanh hang » thanh hang, hang hang, hanh han
nang hang » nang sang, hang hang, cang thang
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cao » toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - ((hanh hang) or (nang hang)) cua nhung ((cong dan) OR (cong san)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((hanh hang) OR (nang hang)) cua nhung ((cong dan) OR (cong san)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((hanh hang) or (nang hang)) cua nhung ((cong dan) OR (cong san)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((hanh hang) or (nang hang)) cua nhung ((cong dan) OR (cong san)) toan cao*.