Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
tao khoi » tao hoi, thao khoa, lao khoa
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
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: su sach ((ky sang) or (ky tang)) tao khoi. ((hieu ve) or (lieu va)) cam xuc va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky tang)) tao khoi. ((hieu ve) OR (lieu va)) cam xuc va thanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky tang)) tao khoi. ((hieu ve) or (lieu va)) cam xuc va thanh vai cua tre*.