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