Perhaps you should try some spelling variations:
minh tuan » anh tuan
manh tuan » anh tuan, manh toan, van tuan
so sach » so sanh, bo sach, co sach
hoi cua » hoi chuc
sach tu » sach thu, cach tu, sach ty
van dau » van dao, phan dau
van cau » van hau, van chat, toan cau
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach tu nang xa hoi. hieu ((van cau) or (van dau)) duc ((manh tuan) OR (minh tuan)) hoi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach tu nang xa hoi. hieu ((van cau) OR (van dau)) duc ((manh tuan) OR (minh tuan)) hoi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach tu nang xa hoi. hieu ((van cau) or (van dau)) duc ((manh tuan) OR (minh tuan)) hoi cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach tu nang xa hoi. hieu ((van cau) or (van dau)) duc ((manh tuan) OR (minh tuan)) hoi cua tre*.