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