What i would do personally is query each row individually, i'm sure theres a more efficient way but i'm not the best at php...but this is how i'd do it...
PHP Code:
<?php
$query
=mysql_query("SELECT  * FROM    students_results WHERE   full_name LIKE '".trim($_POST['full_name'])."'  AND mother_name LIKE '".$database->escape_value(trim($_POST['mother_name']))."'  AND birthday = '".$database->escape_value($_POST['year2'])."'")
$count=mysql_num_rows($query)
if(
$count==0)
{
echo 
"Nothing found";
die();
}
else
{
while(
$row=mysql_fetch_array($query)
{
if(
$row['full_name']==0)
{
echo 
"Full name not found";
}
if(
$row['mother_name']==0)
{
echo 
"Mother name not found";
}
//etc etc
}
}
?>
that's how i'd do it, if the above doesn't work it may need some tweaking. Admins/mods feel free to edit if this doesn't work...