Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den than so snippets" » "den thanh so snippets", "dien than so snippets", "dan than so snippets", "den than sao snippets", "den than vo snippets", "den than go snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

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