Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
van lam » van nam
vai cua » dai cua, hai cua, lai cua
qua ban » cua ban, qua quan
van cam » van nam, van cau, van dam
may hoi » may thoi, tay hoi, mai hoi
ky mang » ky nang, ke mang, ky dang
te sach » toc sach
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: ((thu sach) or (te sach)) ky mang may hoi. hieu ((van cam) or (van lam)) qua ban thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (te sach)) ky mang may hoi. hieu ((van cam) OR (van lam)) qua ban thanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (te sach)) ky mang may hoi. hieu ((van cam) or (van lam)) qua ban thanh vai cua te*.