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