Perhaps you should try some spelling variations:
thu bang » thu ban, thu hang, thu trang
hanh dai » hanh tai, hanh dao, vanh dai
chu bang » chuc nang, chu quang, chu trang
va hanh » van hanh, va thanh, va danh
chuc va » thuc va, thuc vat
so sach » so sanh, bo sach, co sach
ve pham » v pham, ve phan, ve phat
mai hoi » mai khoi, dai hoi, lai hoi
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((thu bang) OR (chu bang)) mai hoi. hieu ((ve pham) or (vi pham)) chuc va hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((thu bang) OR (chu bang)) mai hoi. hieu ((ve pham) OR (vi pham)) chuc va hanh dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((thu bang) OR (chu bang)) mai hoi. hieu ((ve pham) or (vi pham)) chuc va hanh dai cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ((thu bang) OR (chu bang)) mai hoi. hieu ((ve pham) or (vi pham)) chuc va hanh dai cua te*.