Perhaps you should try some spelling variations:
tinh thi » trinh thi, tinh thai, dinh thi
vu sach » vu bach, su sach, vu khach
thi cua » thai cua, thi cuc, tri cua
thuc va » thuc vat, thuc dan, thuc day
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
tuc va » truc va, tuc xa, duc va
y lang » o lang, _ lang, tay lang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (so sach)) y lang xa hoi. hieu ve cam ((tuc va) OR (thuc va)) tinh thi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (so sach)) y lang xa hoi. hieu ve cam ((tuc va) OR (thuc va)) tinh thi cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (so sach)) y lang xa hoi. hieu ve cam ((tuc va) OR (thuc va)) tinh thi cua tre*.