Perhaps you should try some spelling variations:
tinh de » tinh da, sinh de, tinh he
va tinh » may tinh
sach ky » sac ky, sach y, sach kem
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
luc va » duc va, tuc va, loc va
de cua » le cua, te cua, dieu cua
ve coc » ve cuoc, ve cac
ve co » vo co, va co, de co

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: su ((sach ky) OR (sach ty)) lang xa hoi. hieu ((ve coc) OR (ve co)) luc va tinh de cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sach ty)) lang xa hoi. hieu ((ve coc) or (ve co)) luc va tinh de cua tre~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sach ty)) lang xa hoi. hieu ((ve coc) or (ve co)) luc va tinh de cua tre*.