Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van chat
hanh dai » hanh tai, hanh dao, vanh dai
van cham » van chat, va cham, van pham
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va

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 ty nang ma hoi. hieu ((van cham) OR (van tham)) ((xuc va) or (tuc xa)) hanh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ma hoi. hieu ((van cham) OR (van tham)) ((xuc va) OR (tuc xa)) hanh dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang ma hoi. hieu ((van cham) OR (van tham)) ((xuc va) or (tuc xa)) hanh dai cua tre*".