Perhaps you should try some spelling variations:
nguoi biet » nguoi viet, nguoi chet, nguoi binh
nuoc biet » nuoc viet, quoc viet, duoc bien
nghia cua » nghiep cua, nghia xa, nghia duy
nhung bo » nhung bi, nhung bai, nhung don
su sach » so sach
vu sach » vu bach, vu khach
bo doi » bo di, bo noi, co doi
doi vi » doi voi, doi vai, doi va
nha » nhan, nhat

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) OR (vu sach)) nha ((nuoc biet) or (nguoi biet)) nghia cua ets : nhung bo doi vi đai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) nha ((nuoc biet) OR (nguoi biet)) nghia cua ets : nhung bo doi vi đai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) nha ((nuoc biet) or (nguoi biet)) nghia cua ets : nhung bo doi vi đai".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) nha ((nuoc biet) or (nguoi biet)) nghia cua ets : nhung bo doi vi đai*.