Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, tu cach
tai cua » thai cua, tai cuc, tri cua
xuc van » duc van, luc van, xuc ban
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
ve cam » ve cham, ve cac, va cam

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) or (te sach)) y ((nang ma) or (nang x)) hoi. hieu ve cam xuc van hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) y ((nang ma) OR (nang x)) hoi. hieu ve cam xuc van hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) y ((nang ma) or (nang x)) hoi. hieu ve cam xuc van hanh tai cua tre*.