Perhaps you should try some spelling variations:
ban hanh » ban hang
chat xuc » chat huu, cam xuc, chao xu
tu sach » thu sach, su sach, te sach
xuc ban » duc ban, cuc ban, quoc ban
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
lai roi » lai hoi, loi roi
mai hoi » mai khoi, dai hoi, lai hoi
vi cua » vai cua
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 ky nang ((mai hoi) or (lai roi)). hieu ve chat xuc ban hanh ((vi cua) or (di cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang ((mai hoi) OR (lai roi)). hieu ve chat xuc ban hanh ((vi cua) OR (di cua)) tu.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang ((mai hoi) or (lai roi)). hieu ve chat xuc ban hanh ((vi cua) or (di cua)) tu*.