Perhaps you should try some spelling variations:
bang tay » ban tay, bang may, mang tay
hanh hai » thanh hai, nhanh hai, hang hai
hai cua » thai cua, dai cua, hoi cua
va hanh » van hanh, va thanh, va danh
bo sach » hoc sach
co sach » cuon sach, hoc sach
bang ma » bang may, tang ma, ban ma
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham
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: ((bo sach) or (co sach)) thu ((bang ma) or (bang tay)) hoi. hieu v pham duc va hanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (co sach)) thu ((bang ma) OR (bang tay)) hoi. hieu v pham duc va hanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: ((bo sach) or (co sach)) thu ((bang ma) or (bang tay)) hoi. hieu v pham duc va hanh hai cua te*.