Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cua thuong » cua truong, cua phuong, ca thuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 (diep tinh)) - ((hanh tang) or (hanh mang)) cua thuong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sang) OR (diep tinh)) - ((hanh tang) OR (hanh mang)) cua thuong cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sang) or (diep tinh)) - ((hanh tang) or (hanh mang)) cua thuong cong dan toan ban*.