Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
sach ty » sach y, sach tu, xach tay
hanh di » hanh vi, hanh de, hang di
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
va dau » va dao
tuc va » thuc va, tuc xa, duc va
di cua » dai cua, doi cua, de 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 ty) or (sach thu)) lang xa hoi. lieu va dau ((tuc va) OR (truc va)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach thu)) lang xa hoi. lieu va dau ((tuc va) OR (truc va)) hanh di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach thu)) lang xa hoi. lieu va dau ((tuc va) OR (truc va)) hanh di cua tre*".