Perhaps you should try some spelling variations:
biet nghia » biet nghi, viet nghin
phat nuoc » phap nuoc, nhat nuoc, khat nuoc
nuoc biet » nuoc viet, nguoi biet, quoc viet
nghia cua » nghiep cua, nghia xa, nghia duy
su sach » vu sach
so sach » so sanh, bo sach, co sach
bo doi » bo di, bo noi, ho doi
co doi » cho doi, co dot, co dai

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) OR (so sach)) phat nuoc biet nghia cua ets : nhung ((bo doi) OR (co doi)) vi đai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) phat nuoc biet nghia cua ets : nhung ((bo doi) or (co doi)) vi đai~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) phat nuoc biet nghia cua ets : nhung ((bo doi) or (co doi)) vi đai*.