Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van dinh » van minh, van dich, va dinh
lang van » dang van, tang van, hoang van
van chao » van chat, van hao, van cho
sach tay » xach tay, sach hay, sach nay
va tinh » may tinh
su sach » so sach, vu sach
lang xa » lang ha, dang xay
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tay ((lang xa) OR (lang van)) hoi. hieu van chao xu ((va tinh) or (van dinh)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tay ((lang xa) OR (lang van)) hoi. hieu van chao xu ((va tinh) OR (van dinh)) va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach tay ((lang xa) OR (lang van)) hoi. hieu van chao xu ((va tinh) or (van dinh)) va cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach tay ((lang xa) OR (lang van)) hoi. hieu van chao xu ((va tinh) or (van dinh)) va cua tre*.