Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"den lay toan snippets" » "den lap toan snippets", "den ly toan snippets", "den bai toan snippets", "den gay toan snippets", "den lam toan snippets", "den nay toan 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 lay toan 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 lay toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( den lay toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("den lay toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.