Perhaps you should try some spelling variations:
"missing data a snippets" » "using data a snippets", "missing data _ snippets", "missing data 4 snippets"
"19 using low snippets" » "_ using low snippets", "ε using low snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("19 using low snippets") or ("missing data a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("19 using low snippets") OR ("missing data a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( 19 using low snippets ) or ( missing data a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("19 using low snippets") or ("missing data a snippets"))) or ("locating bug code snippets"))*.