Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van khai dan slippers" » "van hai dan slippers", "van khi dan slippers", "dan khai dan slippers", "van khau dan slippers", "van thai doan slippers", "van khai dan slippery", "van khai 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: (((("van khai 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: (((("van khai dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van khai dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van khai dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.