Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
te sach » toc sach
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
ky danh » ky anh
ky dang » ky nang
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ky dang) OR (ky danh)) ma hoi. ((hieu ve) or (hieu van)) cam xuc va thanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky dang) OR (ky danh)) ma hoi. ((hieu ve) OR (hieu van)) cam xuc va thanh tai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky dang) OR (ky danh)) ma hoi. ((hieu ve) or (hieu van)) cam xuc va thanh tai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky dang) OR (ky danh)) ma hoi. ((hieu ve) or (hieu van)) cam xuc va thanh tai cua tre*.