This happens and is either a result of an improper search term setup or eBay’s best match algorithm thinking for you and giving unrelated searches.
Sellers can also often times include items in the improper catalog ID.
Start with simple search terms and then moved to advanced parmaters that uBuyFirst allows (such as “-” or in quotations or parenthesis). You can also use search filters and price min/max to reduce the number of these improper search results.
Remember, it’s usually best to create simplified keywords and then use the functions of uBuyFirst to eliminate outliers or highlighting cell/row/listing keywords or phrases to help you identify these improper results rather than create tons of rules that might exclude items that you do want to see.