Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
danh di » danh du, xanh di, danh dien
cua tre » cua te, cuu tre, cua triet
qua ca » qua cac, qua cua, qua cai
xac va » tac va, ac va, bac va
di cua » dai cua, doi cua, de cua

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 ty nang xa hoi. hieu ((qua ca) or (qua cham)) ((xac va) or (duc va)) danh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty nang xa hoi. hieu ((qua ca) OR (qua cham)) ((xac va) OR (duc va)) danh di cua tre.
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. hieu ((qua ca) or (qua cham)) ((xac va) or (duc va)) danh di cua tre*.