Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc dang su slippers" » "luc sang su slippers", "luc dong su slippers", "luoc danh su slippers", "luc dang su slippery", "luc dang su grippers"
"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 dang su slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc dang su slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc dang su slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc dang su slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.