Perhaps you should try some spelling variations:
thanh dinh » thanh binh, thanh tinh, thanh vinh
dinh cuu » dinh chi
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
ly hang » ly quang
ty hang » ty xang, thi hang, thu hang
cuu tre » cua tre, cau tren, cau treo
va nay » va ngay, va cay
sua va » suat va, xua va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ty hang) or (ly hang)) x hoi. hieu va nay ((sua va) OR (vua va)) thanh dinh cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty hang) OR (ly hang)) x hoi. hieu va nay ((sua va) OR (vua va)) thanh dinh cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty hang) or (ly hang)) x hoi. hieu va nay ((sua va) OR (vua va)) thanh dinh cuu tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty hang) or (ly hang)) x hoi. hieu va nay ((sua va) OR (vua va)) thanh dinh cuu tre*.