Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
chat xuc » chat huu, cam xuc, chao xu
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu van
tu sac » tu sach, tu cac, tu san
xuc va » duc va, tuc va, luc va
vai va » mai va, dai va, hai va
sac ky » cac ky, sai ky
ma hoi » xa hoi, ma hoa, me hoi
thiet » thieu

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