Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
duc manh » suc manh, duc anh, duc minh
xuc manh » suc manh, duc minh, bui manh
tu sach » thu sach, te sach, tu cach
lai cua » dai cua, hai cua, lai chau
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
ma hoi » mai hoi, xa hoi, ma hoa

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) OR (su sach)) ky nang ma hoi. hieu ve cam ((xuc manh) OR (duc manh)) hanh lai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang ma hoi. hieu ve cam ((xuc manh) OR (duc manh)) hanh lai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang ma hoi. hieu ve cam ((xuc manh) OR (duc manh)) hanh lai cua tre*.