Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc ngon doc snippets" » "duc ngon doc snippets", "luc ngan doc snippets", "luc ngo doc snippets", "luc ngo duc snippets", "luc ngo dac 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: (((("luc ngon doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc ngon doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc ngon doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc ngon doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.