Perhaps you should try some spelling variations:
nguoi thong » nguoi muong, nguoi thanh
nguoi cong » nguoi muong, nguoi nung, nguoi co
duong minh » duong manh, truong minh, thong minh
hong minh » hoang minh, thong minh, khong minh
sach cha » sach nha, sach ha, sach cua
sach che » sach thue, sach nha, sach cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach cha) or (sach che)) me ((nguoi cong) OR (nguoi thong)) ((hong minh) or (duong minh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach cha) OR (sach che)) me ((nguoi cong) OR (nguoi thong)) ((hong minh) OR (duong minh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach cha) or (sach che)) me ((nguoi cong) OR (nguoi thong)) ((hong minh) or (duong minh))".
• Adding a wildcard symbol may retrieve word variants: thu ((sach cha) or (sach che)) me ((nguoi cong) OR (nguoi thong)) ((hong minh) or (duong minh))*.