Perhaps you should try some spelling variations:
thong minh » thong tin
sach phan » sach han, mach phan, sach phat
con thong » cong thong, con hong, cong thuong
gioi con » gioi co, gioi can, gioi hon
gioi bon » gioi hon, gioi binh, gioi dong
giai con » gian con, giai doan, giao cong
te sach » toc sach
phan ve » phan le, phan va, pha ve
ve giai » va giai, ve giao, de giai
tu bac » tu ban, tu cac, tu bat
ha me » cha me, ba me, ha le

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu bac ha me ((gioi con) OR (gioi bon)) hoang minh ) or ( te sach phan ve giai con thong minh ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu bac ha me ((gioi con) OR (gioi bon)) hoang minh ) OR ( te sach phan ve giai con thong minh )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tu bac ha me ((gioi con) OR (gioi bon)) hoang minh ) or ( te sach phan ve giai con thong minh ))".
• Adding a wildcard symbol may retrieve word variants: (( tu bac ha me ((gioi con) OR (gioi bon)) hoang minh ) or ( te sach phan ve giai con thong minh ))*.