Perhaps you should try some spelling variations:
duc manh » suc manh, duc anh, duc minh
va triet » va thiet, va trien, ve triet
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty xang, ly nang
ty hang » ly hang, ty xang, thi hang
qua cam » qua cham, qua cac, qua ca
xuc van » duc van, luc van, vuc van
ma hoi » mai hoi, xa hoi, ma hoa
anh vi » hanh vi, anh va, anh ve
vi va » vi van, vai va, vu va

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 sach ((ty nang) OR (ty hang)) ma hoi. hieu qua cam ((xuc van) OR (duc manh)) anh vi va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty hang)) ma hoi. hieu qua cam ((xuc van) or (duc manh)) anh vi va triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty hang)) ma hoi. hieu qua cam ((xuc van) or (duc manh)) anh vi va triet*.