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