Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha duc dan slippers" » "pham duc dan slippers", "phan duc dan slippers", "pha du dan slippers", "pha duoc dan slippers", "pha duc tan slippers", "pha duc dai slippers", "pha duc dan slippery", "pha duc dan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("pha duc 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: (((("pha duc dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha duc dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha duc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.