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