Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
cham xuc » cam xuc, chat xuc, cham soc
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
sac ky » cac ky, sai ky
vai va » mai va, dai va, hai va
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ((mai hoi) OR (lai hoi)). hieu ve cham xuc van hanh ((vai va) or (hoi va)) thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((mai hoi) OR (lai hoi)). hieu ve cham xuc van hanh ((vai va) OR (hoi va)) thieu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang ((mai hoi) OR (lai hoi)). hieu ve cham xuc van hanh ((vai va) or (hoi va)) thieu".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((mai hoi) OR (lai hoi)). hieu ve cham xuc van hanh ((vai va) or (hoi va)) thieu*.