Perhaps you should try some spelling variations:
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
danh vai » danh sai, danh va, doanh van
hieu van » hieu va, thien van, lieu va
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
van cam » van nam, van lam, van cau
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
cua tre » cua te, cuu tre, cua triet
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) OR (hoc sach)) ((ly nang) or (ly vang)) xa hoi. hieu van cam xuc va danh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (hoc sach)) ((ly nang) OR (ly vang)) xa hoi. hieu van cam xuc va danh vai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (hoc sach)) ((ly nang) or (ly vang)) xa hoi. hieu van cam xuc va danh vai cua tre*".