Perhaps you should try some spelling variations:
nuoc sach » nguoi sach, cuoc cach, cuon sach
thanh vai » thanh hai, thanh van, thanh tai
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
va nang » van nang, cam nang, kha nang
da nang » cam nang, kha nang, cao nang
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (nuoc sach)) ((va nang) OR (da nang)) xa hoi. hieu va cam luc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (nuoc sach)) ((va nang) OR (da nang)) xa hoi. hieu va cam luc va thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) or (nuoc sach)) ((va nang) OR (da nang)) xa hoi. hieu va cam luc va thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (nuoc sach)) ((va nang) OR (da nang)) xa hoi. hieu va cam luc va thanh vai cua tre*.