Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van van phan slippers" » "van van phong slippers", "van van thanh slippers", "van luan phan slippers", "van ban phan slippers", "tan van phan slippers", "san van phan slippers", "van van phan slippery", "van van phan grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van van phan 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 van phan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van van phan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van van phan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.