Perhaps you should try some spelling variations:
thuong dong » phuong dong, tuong dong, chuong dong
truong cong » trong cong, truong dong, truong long
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
canh manh » lanh manh, canh tranh, cach mang
thanh hoa » thanh pho
manh cua » doanh cua, ban cua
hoa can » khoa can, hoa dan, hoa van

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 sang) OR (chieu sach)) - canh manh cua ((truong cong) or (thuong dong)) thanh hoa can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (chieu sach)) - canh manh cua ((truong cong) OR (thuong dong)) thanh hoa can.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sang) OR (chieu sach)) - canh manh cua ((truong cong) or (thuong dong)) thanh hoa can".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) OR (chieu sach)) - canh manh cua ((truong cong) or (thuong dong)) thanh hoa can*.