Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
cua thuong » cua truong, cua phuong, ca thuong
hieu lang » hieu quang, nhieu tang, hieu van
anh nang » ganh nang, anh bang, anh dang
nang cua » mang cua, hang cua, nang dua
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
chat cao » chat co, chat cho, chat bao

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 sang) or (hieu lang)) - anh nang cua thuong ((cong dan) OR (cong san)) chat cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (hieu lang)) - anh nang cua thuong ((cong dan) OR (cong san)) chat cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (hieu lang)) - anh nang cua thuong ((cong dan) OR (cong san)) chat cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (hieu lang)) - anh nang cua thuong ((cong dan) OR (cong san)) chat cao*.