Perhaps you should try some spelling variations:
ban hang » ngan hang
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
nam xua » nam cua, nam mua, nam luat
hang vi » hang va, hanh vi, hang di
nam qua » nam quan, nam cua, nam mua
cua tre » cua te, cuu tre, cua triet
sach tu » sach thu, cach tu, sach ty
nam xuc » cam xuc, nam thuc, nam duoc
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
vi cua » vai cua, di 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 tu nang xa hoi. hieu van ((nam xuc) or (((nam xua) or (nam qua)))) ban hang vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tu nang xa hoi. hieu van ((nam xuc) OR (((nam xua) OR (nam qua)))) ban hang vi cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach tu nang xa hoi. hieu van ((nam xuc) or (((nam xua) or (nam qua)))) ban hang vi cua tre*.