Perhaps you should try some spelling variations:
hang xay » dang xay, hang hay, thong xay
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty hang » ly hang, ty xang, thi hang
xay hoi » xa hoi, tay hoi, cay phoi
xuc ban » duc ban, cuc ban, quoc ban
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty hang xay hoi. hieu van cham xuc ban hanh va ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty hang xay hoi. hieu van cham xuc ban hanh va ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: su sach ty hang xay hoi. hieu van cham xuc ban hanh va ((cua tre) or (cua tu))*.