NGINX: different sites on the same domain

I working on a several php projects and I want to deploy those projects on the same NGINX webserver (same name) with different alias. For example: http://localhost/project1, http://localhost/project2. I thought if add multiple config in sites-avaible and enabled would be enough but its not working. Another thing I want hold the configs in separated files if its possible. These configs works fine separately.

Here is my configs. php info page:

server {
        listen 80;
        root /var/www/html/;

        index index.php index.html index.htm index.nginx-debian.html;

        server_name localhost;

        location / {
                try_files $uri $uri/ /index.php?$args;
        }
        location ~* .(ico|jpg|webp|jpeg|gif|css|png|js|ico|bmp|zip|woff)$ {
            access_log off;
            log_not_found off;
            add_header Pragma public;
            add_header Cache-Control "public";
            expires 14d;
        }

        location ~ \.php$ {
                include snippets/fastcgi-php.conf;
                fastcgi_pass unix:/var/run/php/php5.6-fpm.sock;
        }

        location ~ /\.ht {
                deny all;
        }
}

site1:

server {
        listen 80;
        root /var/www/html/site1/app/webroot;

        index index.php index.html index.htm index.nginx-debian.html;

        server_name localhost/site1;

        location /crade_web {
                try_files $uri $uri/ /index.php?$args;
        }
        location ~* .(ico|jpg|webp|jpeg|gif|css|png|js|ico|bmp|zip|woff)$ {
            access_log off;
            log_not_found off;
            add_header Pragma public;
            add_header Cache-Control "public";
            expires 14d;
        }

        location ~ \.php$ {
                include snippets/fastcgi-php.conf;
                fastcgi_pass unix:/var/run/php/php5.6-fpm.sock;
        }

        location ~ /\.ht {
                deny all;
        }
}

Answer

Attribution
Source : Link , Question Author : eszik.k , Answer Author : Francesco Abeni