Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu li he snippets" » "lieu lai he snippets", "lieu ly he snippets", "lieu ki he snippets", "lieu gi he snippets", "lieu vi he 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 li he 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 li he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu li he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu li he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.