Perhaps you should try some spelling variations:
ban hang » ngan hang
vu sach » vu bach, su sach, vu khach
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tuc ban » thuc ban, truc ban, tu ban
y nang » ky nang, ly nang, v nang
va cam » va cham, va cac, va cao
vi cua » vai cua
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang x hoi. hieu va cam tuc ban hang ((vi cua) or (di cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach y nang x hoi. hieu va cam tuc ban hang ((vi cua) OR (di cua)) triet.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang x hoi. hieu va cam tuc ban hang ((vi cua) or (di cua)) triet*.