Perhaps you should try some spelling variations:
sach nhanh » cach nhanh, sach nha, sach tranh
nhanh cong » nhanh chong, thanh cong, nganh cong
sach ngon » sach ngan, canh ngon, gach ngoi
danh ngon » danh nhan, dinh ngoc
cong khi » cong thai, khong khi, co khi
su sach » so sach, vu sach
y khi » ly khi, ky khi, my khi

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 ngon) OR (danh ngon)) y khi đong luc ) or ( su sach nhanh cong khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su ((sach ngon) OR (danh ngon)) y khi đong luc ) OR ( su sach nhanh cong khi đong luc ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( su ((sach ngon) OR (danh ngon)) y khi đong luc ) or ( su sach nhanh cong khi đong luc ))*".