Perhaps you should try some spelling variations:
thong minh » thong tin, hoang minh
sach cha » sach nha, sach che, sach ha
co thong » bo thong, co trong, co phong
so sach » so sanh, bo sach, co sach
giai ma » giai mau, giai bai, giai han
giai ca » giai cac, giai cao, giai bai
vu sach » vu bach, su sach, vu khach
sach ba » sach bai, sach bac, sach bao
giai co » giai cao, gian co, gioi co
ke giai » kem giai, de giai, ke giao
cha va » chat va, chai va, cham va
ba ke » ban ke, bua ke, ba me

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 ba ke giai co thong minh ) or ( so sach cha va ((giai ca) OR (giai ma)) thong minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach ba ke giai co thong minh ) OR ( so sach cha va ((giai ca) OR (giai ma)) thong minh )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( vu sach ba ke giai co thong minh ) or ( so sach cha va ((giai ca) OR (giai ma)) thong minh ))".
• Adding a wildcard symbol may retrieve word variants: (( vu sach ba ke giai co thong minh ) or ( so sach cha va ((giai ca) OR (giai ma)) thong minh ))*.