Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
dang xay » dang van, van xay
tu sach » thu sach, su sach, te sach
va tinh » may tinh
va dinh » van dinh, va kinh, vu dinh
ca giao » cua giao, co giao, va giao
hien ca » hien cac, hien cau, hien cua
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, lang van
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: tu sach ty ((lang xa) OR (dang xay)) hoi. hieu hien ca giao ((va dinh) or (va tinh)) va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((lang xa) OR (dang xay)) hoi. hieu hien ca giao ((va dinh) OR (va tinh)) va cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty ((lang xa) OR (dang xay)) hoi. hieu hien ca giao ((va dinh) or (va tinh)) va cua tre*".