Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
vu cham » va cham, vu kham, tu cham
hai cua » thai cua, dai cua, hoi cua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
ve cham » va cham, ve chat, ve chim
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 ((ve cham) or (vu cham)) xuc van hanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ma hoi. hieu ((ve cham) OR (vu cham)) xuc van hanh hai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang ma hoi. hieu ((ve cham) or (vu cham)) xuc van hanh hai cua tre*.