Not really. It's hard to search 3 letter words and abbreviations on this site. One way to do it is to to add an asterisk after the 3 letters. E.g., TCI*, HYB*, GYC*, or SRY*. For more information on how to search, see how to search this forum.
Using the asterisks isn't the solution. It's not consistent.
For instance, take the GYC* example you gave and search it using the site search. I get "No Results Found".
Then look at the actual results for GYC according to Google.