Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van phan va slippers" » "van phong va slippers", "van thanh va slippers", "luan phan va slippers", "van phan van slippers", "van nhan va slippers", "van han va slippers", "van phan va slippery", "van phan 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: (((("van phan 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: (((("van phan va slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van phan va slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van phan va slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.