Perhaps you should try some spelling variations:
truong hong » truong huong, truong cong, truong dong
bang than » bang thanh, sang than, bang nhan
chi sach » chinh sach, chieu sach, co sach
tranh xa » trinh xa, trach xa, trang xa
trinh do » trinh ky
ban than » ban thanh, van thanh, ban hang
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sach - canh ((tranh xa) or (trinh do)) truong hong ((bang than) OR (ban than)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - canh ((tranh xa) OR (trinh do)) truong hong ((bang than) OR (ban than)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi sach - canh ((tranh xa) or (trinh do)) truong hong ((bang than) OR (ban than)) ban".
• Adding a wildcard symbol may retrieve word variants: doi chi sach - canh ((tranh xa) or (trinh do)) truong hong ((bang than) OR (ban than)) ban*.