Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va thanh » gia thanh, va tinh, le thanh
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
vai cua » dai cua, hai cua, lai cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu va ((cam duc) OR (cao su)) ((va thanh) OR (ban thanh)) vai cua tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang x hoi. hieu va ((cam duc) or (cao su)) ((va thanh) OR (ban thanh)) vai cua tu~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. hieu va ((cam duc) or (cao su)) ((va thanh) OR (ban thanh)) vai cua tu*.