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