Perhaps you should try some spelling variations:
tang tao » sang tao, tang tai, nang tao
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
tao hoi » tao khoi, tao boi, tay hoi
su sach » vu sach
ky tang » ky nang, ky dang, kho tang
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ky tang tao hoi. ((hieu ve) or (lieu va)) cam xuc va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky tang tao hoi. ((hieu ve) OR (lieu va)) cam xuc va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky tang tao hoi. ((hieu ve) or (lieu va)) cam xuc va hanh vi cua tre*".