Perhaps you should try some spelling variations:
cuon sach » duong sach, cuoc cach, co sach
trung va » truong va, trang va, trung ha
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
lua tre » cua tre, luy tre, dua tren
y nang » ky nang, ly nang, v nang
vi lua » vi luu
x hoi » xa hoi, o hoi, x ho

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) or (cuon sach)) y nang x hoi. hieu ve cham ((duc va) or (trung va)) hanh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (cuon sach)) y nang x hoi. hieu ve cham ((duc va) OR (trung va)) hanh vi lua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (cuon sach)) y nang x hoi. hieu ve cham ((duc va) or (trung va)) hanh vi lua tre*.