Perhaps you should try some spelling variations:
bang thang » cang thang, lang thang, bang thanh
nhung hong » nhung chong, nhung huong, nhung phong
hong bang » dong bang, hang ban, hong hanh
chi sach » chinh sach, chieu sach, co sach
thang tu » thong tu, thanh tu, hang tu
doi chi » doi khi
manh va » hanh va, anh va, minh va

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 ((manh va) or (sinh vat)) nhung hong bang thang tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sach - canh ((manh va) OR (sinh vat)) nhung hong bang thang tu.
• Adding a wildcard symbol may retrieve word variants: doi chi sach - canh ((manh va) or (sinh vat)) nhung hong bang thang tu*.