Perhaps you should try some spelling variations:
hanh di » hanh vi, hanh de, hang di
va cham » va chat, va tham
tu sach » thu sach, te sach, tu cach
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang
goc va » hoc va, doc va, uoc va
loc va » hoc va, luc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (su sach)) y nang ma hoi. lieu va cham ((goc va) or (loc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) y nang ma hoi. lieu va cham ((goc va) OR (loc va)) hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (su sach)) y nang ma hoi. lieu va cham ((goc va) or (loc va)) hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (su sach)) y nang ma hoi. lieu va cham ((goc va) or (loc va)) hanh di cua tre*.