Perhaps you should try some spelling variations:
chat truc » cau truc
hieu van » hieu va, thien van, lieu va
toc sach » hoc sach, doc sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
v lang » va lang, o lang, _ lang
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: ((te sach) OR (toc sach)) v lang xa hoi. hieu van ((chat truc) or (chat xuc)) va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) v lang xa hoi. hieu van ((chat truc) OR (chat xuc)) va danh vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) v lang xa hoi. hieu van ((chat truc) or (chat xuc)) va danh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) v lang xa hoi. hieu van ((chat truc) or (chat xuc)) va danh vi cua tre*.