Perhaps you should try some spelling variations:
nguoi quan » nguoi san, nguoi dan
hoang xanh » hoang anh, hoang van, hoang xuan
ke nguoi » le nguoi, ky nguoi, me nguoi
su sach » vu sach
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
nhan ke » nhan ky, nhan ve, phan ke
minh » dinh

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 (((so sach) OR (so sanh)))) nhan ke nguoi quan ((hoang xanh) or (hoang minh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (((so sach) OR (so sanh)))) nhan ke nguoi quan ((hoang xanh) OR (hoang minh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (((so sach) OR (so sanh)))) nhan ke nguoi quan ((hoang xanh) or (hoang minh))".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (((so sach) OR (so sanh)))) nhan ke nguoi quan ((hoang xanh) or (hoang minh))*.