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