Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
may hoi » may thoi, tay hoi, may hmi
mai hoi » mai khoi, dai hoi, lai hoi
xa hanh » xa thanh, xa khanh, va hanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
y mang » cay mang
va cam » va cham, va cac, va cao
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y mang ((may hoi) OR (mai hoi)). lieu va cam tu ((xa hanh) or (van hanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y mang ((may hoi) OR (mai hoi)). lieu va cam tu ((xa hanh) OR (van hanh)) vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y mang ((may hoi) OR (mai hoi)). lieu va cam tu ((xa hanh) or (van hanh)) vai cua tre*".