When searching on Discord, make sure you are using the standard discord search and not the forum specific search. The forum search does not always return the correct results for a location tag like [USA-IN] and will frequently reset if you scroll too far.
On desktop: Use the search at the top right of the desktop client and not the search bar within selling / buying .
On mobile: Start the search in any other channel and confirm it says “Search HardwareSwap”. It should not say “Search forum posts”
From there you can use search options like in: selling and then your search term.