Perhaps you should try some spelling variations:
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
tinh di » tinh doi, trinh di, tinh da
va tinh » may tinh
lam xuc » lam duoc
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
cuu tre » cua tre, cau tren, cau treo
di cuu » di cau, di cua, dinh cuu

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)) ty lang xa hoi. thien van ((lam xuc) or (cam xuc)) va tinh di cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ty lang xa hoi. thien van ((lam xuc) OR (cam xuc)) va tinh di cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) ty lang xa hoi. thien van ((lam xuc) or (cam xuc)) va tinh di cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) ty lang xa hoi. thien van ((lam xuc) or (cam xuc)) va tinh di cuu tre*.