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