Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
hanh dai » hanh dao, vanh dai, thanh dat
tu sach » thu sach, su sach, te sach
ve chat » va chat, van chat
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
va cham » va chat, va tham
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ma hoi » mai hoi, xa hoi, ma hoa

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 ty nang ma hoi. hieu ((va cham) or (ve chat)) duc va ((hanh dai) OR (hanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ma hoi. hieu ((va cham) OR (ve chat)) duc va ((hanh dai) OR (hanh tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang ma hoi. hieu ((va cham) or (ve chat)) duc va ((hanh dai) OR (hanh tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ma hoi. hieu ((va cham) or (ve chat)) duc va ((hanh dai) OR (hanh tai)) cua tre*.