Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung su khac slippers" » "dung cu khac slippers", "dung du khac slippers", "dung so khac slippers", "dung vu khac slippers", "dung se khac slippers", "dung bui khac slippers", "dung su khac slippery", "dung su khac 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 su khac 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 su khac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung su khac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung su khac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.