Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung khoi su slippers" » "dung khoa su slippers", "dang khoi su slippers", "hung khoi su slippers", "dung khoi su slippery", "dung khoi 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: (((("dung khoi 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: (((("dung khoi su slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung khoi su slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung khoi su slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.