Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
thanh ve » hanh ve, thanh vien, thanh van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
ky tang » ky nang, ky dang, kho tang
tang ma » mang may, tang van
hieu ve » hieu van
tuc va » thuc va, truc va, tuc xa
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky tang ma hoi. ((hieu ve) or (hieu va)) cam tuc va ((thanh ve) OR (thanh va)) hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky tang ma hoi. ((hieu ve) OR (hieu va)) cam tuc va ((thanh ve) OR (thanh va)) hoa viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky tang ma hoi. ((hieu ve) or (hieu va)) cam tuc va ((thanh ve) OR (thanh va)) hoa viet".
• Adding a wildcard symbol may retrieve word variants: su sac ky tang ma hoi. ((hieu ve) or (hieu va)) cam tuc va ((thanh ve) OR (thanh va)) hoa viet*.