Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
hai cua » thai cua, dai cua, hoi cua
va lang » va nang, hoa lang
va hang » van hang, va nang, va hanh
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
ky lang » ky dang, ky tang, tay lang
cua tre » cua te, cuu tre, cua triet
ve cac » va cac, vien cac

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 ((ky lang) or (ky nang)) xa hoi. hieu ve cac xuc ((va hang) or (va lang)) hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cac xuc ((va hang) OR (va lang)) hai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky lang) or (ky nang)) xa hoi. hieu ve cac xuc ((va hang) or (va lang)) hai cua tre*.