Perhaps you should try some spelling variations:
sang cho » danh cho, dung cho, sang tao
hieu van » hieu va, thien van, lieu va
cau phuc » cau truc, chau phu, huu phuc
hanh vai » hanh vi, hanh va, hanh tai
so sach » so sanh, bo sach, co sach
nang co » nang cao, nang doc, nang noi
van cau » van dau, van hau, van chat
phuc va » phuc vu, thuc va, chuc va
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach y ((nang co) or (sang cho)) hoi. hieu van cau phuc va hanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach y ((nang co) OR (sang cho)) hoi. hieu van cau phuc va hanh vai cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach y ((nang co) or (sang cho)) hoi. hieu van cau phuc va hanh vai cua tre*.