Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hang hoi » hang hoa, hang hai, hang doi
chat xuc » chat huu, cam xuc, chao xu
hieu ve » hieu va, hieu van
hoi cua » hoi chuc
va hang » van hang, va nang, va lang
ve chat » va chat, van chat
cua tre » cua te, cuu tre, cua triet
v nang » va nang, vu nang, van nang
xuc va » duc va, tuc va, luc va
y nang » ky nang, ly nang, may nang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) OR (toc sach)) ((y nang) or (v nang)) xa hoi. hieu ve chat xuc va hang hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ((y nang) OR (v nang)) xa hoi. hieu ve chat xuc va hang hoi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ((y nang) or (v nang)) xa hoi. hieu ve chat xuc va hang hoi cua tre*".