yes, that >3 character search limit can be annoying, as well as the lack of logical connectors like AND,OR,NOT.
...In which case Google can be useful as it doesn't have those limits.
do a google site search, ie. use google search on:
axe -stone site:vikingsword.com
the '-' is a NOT, I generally also use a -site: pinterest.c* and -site: pinimg.c* to get rid of their clickbait crud. ( the keyword site: should not have a space after it, added above as a colon followed by the 'p' char. is a smily face sticking it's tongue out