Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan sy cua snippets" » "phan xay cua snippets", "phan huy cua snippets", "phan day cua snippets", "phan ly cua snippets", "phan ky cua snippets", "phan my cua 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 sy cua 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 sy cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan sy cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan sy cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.