Perhaps you should try some spelling variations:
ban hanh » ban hang
sach thu » sach thue, sach thieu, sach tham
hanh di » hanh vi, hanh de, hang di
xuc ban » duc ban, cuc ban, quoc ban
qua cam » qua cham, qua cac, qua ca
nang ma » tang ma, sang ma, nang cao
sach ty » sach y, sach tu, xach tay
cua tre » cua te, cuu tre, cua triet
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: tu ((sach ty) or (sach thu)) ((nang x) or (nang ma)) hoi. hieu qua cam xuc ban hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach thu)) ((nang x) OR (nang ma)) hoi. hieu qua cam xuc ban hanh di cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sach thu)) ((nang x) or (nang ma)) hoi. hieu qua cam xuc ban hanh di cua tre*.