Perhaps you should try some spelling variations:
con thong » cong thong, cong thuong, toan thong
sach che » sach thue, sach nha, sach cap
con hong » con song, cong thong, cong khong
tu sach » thu sach, su sach, te sach
me gioi » me nguoi, moi gioi
me giai » de giai, ve giai, ke giai
ve gioi » ve giai, vien gioi, van gioi

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

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