Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van thi tra slippers" » "van tai tra slippers", "dan thi tra slippers", "van thu tra slippers", "van thi tran slippers", "van thi trac slippers", "van thi ra slippers", "van thi tra slippery", "van thi tra 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 thi tra 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 thi tra slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van thi tra slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van thi tra slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.