Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan li cac snippets" » "phan le cac snippets", "han li cac snippets", "pan li cac snippets", "phan li ca snippets", "phan ly cac snippets", "phan loi cach 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 li cac 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 li cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan li cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan li cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.