Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung van va slippers" » "duong van va slippers", "dung va va slippers", "dang van va slippers", "dung van vat slippers", "dung van van slippers", "dung ban va slippers", "dung van va slippery", "dung van 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: (((("dung van 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: (((("dung van va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung van va slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung van va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.