Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hoc vo snippets" » "phap hoc vo snippets", "phan hoa vo snippets", "phau hoc vo snippets", "phan hoc va snippets", "phan hoc co snippets", "phan hoc vi snippets"
"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: (((("phan hoc vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan hoc vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hoc vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hoc vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.