Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
van thanh » ban thanh, van tuan
tu sach » thu sach, su sach, te sach
ve phan » va phan, ke phan, ve phat
hai cua » thai cua, dai cua, hoi cua
duc van » duc va, duc tan, duc manh
ve pham » vi pham, v pham, ve phat
so sach » so sanh, bo sach, co sach
nang o » nang co, nang ho, nang ro
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (so sach)) ky nang o hoi. hieu ((ve pham) or (ve phan)) duc van thanh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) ky nang o hoi. hieu ((ve pham) OR (ve phan)) duc van thanh hai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) ky nang o hoi. hieu ((ve pham) or (ve phan)) duc van thanh hai cua te*.