What kind of results are you expecting?
“literal” treats the filter operand value as a literal string that can contain whitespace as opposed to the default “words” flag, which treats the filter operand value as a list of whitespace-separated tokens. Note that since your specified operand value ("[ip]
") does not contain any spaces, “literal”, “whitespace”, “words” and “some” are all equivalent. As such, you could omit the “literal” flag and allow the default “words” flag to be used.
“anchored” requires the filter operand value to occur at the beginning of the field being searched (as opposed to occurring as a substring anywhere within the field) value).
Thus, as @TW_Tones noted, your filter would find tiddlers whose tag field begins with “ip”, e.g., ipcalc
, but not tag fields containing aipcalc
or calcip
, since those tag fields do not start with “ip”.