Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
chat xuc » chat huu, cam xuc, chao xu
va hanh » van hanh, va danh, ban hanh
cao hoi » cau hoi, co hoi, cao hoc
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
vai va » mai va, dai va, lai va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
hai va » hai van, thai va, hoi va
thiet » thieu

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 cao hoi. hieu va chat xuc ((va hanh) OR (va thanh)) ((vai va) OR (hai va)) thiet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang cao hoi. hieu va chat xuc ((va hanh) or (va thanh)) ((vai va) OR (hai va)) thiet~".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang cao hoi. hieu va chat xuc ((va hanh) or (va thanh)) ((vai va) OR (hai va)) thiet*.