Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"buc van phan snippets" » "buc van phong snippets", "buc van thanh snippets", "buc luan phan snippets", "bui van phan snippets", "duc van phan snippets", "luc van phan snippets", "buc van phan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("buc van phan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("buc van phan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( buc van phan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("buc van phan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.