Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan van vi slippers" » "pham van vi slippers", "thanh van vi slippers", "luan van vi slippers", "phan van vu slippers", "phan van ai slippers", "phan van va slippers", "phan van vi slippery", "phan van vi 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: (((("phan van vi 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 van vi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan van vi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan van vi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.