Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van toi hat slippers" » "van tai hat slippers", "van thi hat slippers", "van toan hat slippers", "van toi hoat slippers", "van hoi hat slippers", "van moi nhat slippers", "van toi hat slippery", "van toi hat 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: (((("van toi hat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van toi hat slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van toi hat slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van toi hat slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.