Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
sach ngan » sach ngon, sach nha, sach han
can nhanh » cach nhanh, nhan nhanh, chi nhanh
chong khi » khong khi, cong khi, chong hiv
hang khi » hang khoa, dang khoi, khong khi
bang khi » ban khi, dang khoi, dang khai
vu sach » vu bach, su sach, vu khach
tu can » tu ban, tu cac, thu canh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach ngan ((hang khi) OR (bang khi)) đong luc ) or ( tu can nhanh chong khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach ngan ((hang khi) OR (bang khi)) đong luc ) OR ( tu can nhanh chong khi đong luc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( vu sach ngan ((hang khi) OR (bang khi)) đong luc ) or ( tu can nhanh chong khi đong luc ))".
• Adding a wildcard symbol may retrieve word variants: (( vu sach ngan ((hang khi) OR (bang khi)) đong luc ) or ( tu can nhanh chong khi đong luc ))*.