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