Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
duc manh » suc manh, duc anh, duc minh
vai cua » dai cua, hai cua, lai cua
duc van » duc va, duc tan, duc phan
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
y nang » ky nang, ly nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
v nang » va nang, vu nang, van nang

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 ((y nang) OR (v nang)) ma hoi. hieu va cam ((duc van) OR (duc manh)) thanh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (v nang)) ma hoi. hieu va cam ((duc van) OR (duc manh)) thanh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (v nang)) ma hoi. hieu va cam ((duc van) OR (duc manh)) thanh vai cua triet*.