Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
tai cua » thai cua, tai cuc, tri cua
va cham » va chat, va tham
ve cham » ve chat, vu cham, ve chim
mai hoi » mai khoi, dai hoi, lai hoi
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang ((ma hoi) or (mai hoi)). hieu ((ve cham) OR (va cham)) xuc va thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ((ma hoi) OR (mai hoi)). hieu ((ve cham) OR (va cham)) xuc va thanh tai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang ((ma hoi) or (mai hoi)). hieu ((ve cham) OR (va cham)) xuc va thanh tai cua tre*".