Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
cang thang » cong thanh, dang thanh
chau tinh » cuu tinh, ha tinh, cac tinh
hang hang » nang hang, hung thang, lang thang
cua tinh » cua sinh, va tinh, ha tinh
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: hoc ((chau tinh) or (cua tinh)) - ((hang hang) or (cang thang)) va thuong cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chau tinh) OR (cua tinh)) - ((hang hang) OR (cang thang)) va thuong cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((chau tinh) or (cua tinh)) - ((hang hang) or (cang thang)) va thuong cong dan toan ban*.