Perhaps you should try some spelling variations:
ve triet » va trien, su triet
hanh tai » thanh tai, hang tai, han tai
duc manh » suc manh, duc anh, duc minh
ve cham » va cham, ve chat, vu cham
tu sach » thu sach, su sach, te sach
ty nang » ky nang, ty hang, ly nang
hieu ve » hieu va, hieu van
tai ve » tai va, tai he, tai le
x hoi » xa hoi, o hoi, x ho

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 xang)) x hoi. hieu ve cham ((duc manh) OR (duc va)) hanh tai ve triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty xang)) x hoi. hieu ve cham ((duc manh) or (duc va)) hanh tai ve triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ty xang)) x hoi. hieu ve cham ((duc manh) or (duc va)) hanh tai ve triet*.