Perhaps you should try some spelling variations:
cuoc luc » coc luc, duoc lac, duoc luu
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
luc may » truc may, phuc may
tinh vi » trinh vi, tinh voi, tinh va
cuu tre » cua tre, cau tren, cau treo
su tien » su kien, su hien, tu tieng

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

• Performing a fuzzy search may retrieve terms with similar spellings: co ((sach ky) OR (sach y)) lang xa hoi. lieu va cuoc luc may tinh vi ((cuu tre) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co ((sach ky) OR (sach y)) lang xa hoi. lieu va cuoc luc may tinh vi ((cuu tre) OR (su tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "co ((sach ky) OR (sach y)) lang xa hoi. lieu va cuoc luc may tinh vi ((cuu tre) or (su tien))".
• Adding a wildcard symbol may retrieve word variants: co ((sach ky) OR (sach y)) lang xa hoi. lieu va cuoc luc may tinh vi ((cuu tre) or (su tien))*.