Perhaps you should try some spelling variations:
ban hanh » ban hang
cham xuc » cam xuc, chat xuc, cham soc
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
lai hoi » dai hoi, lai hoa, lai roi
hanh di » hanh vi, hanh de, hang di
dai hoa » dai khoa, dai hoc, dai hoi
hieu ve » hieu van
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
di cua » dai cua, doi cua, de cua
cua te » cua tu

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 ky nang ((lai hoi) or (dai hoa)). ((hieu ve) OR (hieu va)) cham xuc ban hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((lai hoi) OR (dai hoa)). ((hieu ve) OR (hieu va)) cham xuc ban hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang ((lai hoi) or (dai hoa)). ((hieu ve) OR (hieu va)) cham xuc ban hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((lai hoi) or (dai hoa)). ((hieu ve) OR (hieu va)) cham xuc ban hanh di cua te*.