There are tomes on the web about "long range WiFi" with dishes, reflectors but here's the rub. No one will guarantee the range.
The second problem is that USB dongle doesn't appear to have Android drivers. It's not an external antenna. Maybe you are looking for some range extender to go at the 50 to 75 foot mark?
I have a LG V410 tablet. the other day I connected to a network. When I got about 100 ft away, I lost the signal. I'm wondering if this would improve my ability to receive weak signals such as this?