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