Perhaps you should try some spelling variations:
sach thanh » sach tranh, sach tham, danh thanh
sanh tranh » canh tranh, sach tranh, lanh tranh
tranh la » tranh lam, tranh ha, tranh va
su sach » so sach, vu sach
hoa thi » hoa thai, hoa phi, hoa hi
la chi » ly chi, a chi, va chi
ha thi » pham thi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( do sanh tranh la chi đong luc ) or ( su sach thanh ((hoa thi) OR (ha thi)) đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( do sanh tranh la chi đong luc ) OR ( su sach thanh ((hoa thi) OR (ha thi)) đong luc ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( do sanh tranh la chi đong luc ) or ( su sach thanh ((hoa thi) OR (ha thi)) đong luc ))*".