Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hang vai » hang tai, hang hai, hang vi
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
van tai » von tai, van tuan
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac
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: toc sach ky nang xa hoi. hieu ve cac xuc va ((((hang vai) or (van tai))) or (hang va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. hieu ve cac xuc va ((((hang vai) OR (van tai))) OR (hang va)) cua tre.
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. hieu ve cac xuc va ((((hang vai) or (van tai))) or (hang va)) cua tre*.