Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu ly don snippets" » "lieu ky don snippets", "lieu xay don snippets", "lieu lon don snippets", "lieu ly dong snippets", "lieu la don snippets", "lieu ly do 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: (((("lieu ly don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu ly don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu ly don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu ly don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.