Perhaps you should try some spelling variations:
hong minh » hoang minh, thong minh, khong minh
gian con » gian cuon, gian co, gian don
con hong » con song, cong thong, cong khong
tu sach » thu sach, su sach, te sach
sach ba » sach bai, sach bac, sach bao
me gian » me giai, ma giang
so cac » sao cac, so cap, o cac
bai so » dai so, tai so, hai so

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 ba me gian con hong minh ) or ( so cac ((bai mo) OR (bai so)) gian con hong minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach ba me gian con hong minh ) OR ( so cac ((bai mo) OR (bai so)) gian con hong minh )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu sach ba me gian con hong minh ) or ( so cac ((bai mo) OR (bai so)) gian con hong minh ))".
• Adding a wildcard symbol may retrieve word variants: (( tu sach ba me gian con hong minh ) or ( so cac ((bai mo) OR (bai so)) gian con hong minh ))*.