Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan che cuc snippets" » "han che cuc snippets", "phap che cuc snippets", "phan thi cuc snippets", "phan chi cuc snippets", "phan che duoc snippets", "phan che quoc 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 che cuc 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 che cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan che cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan che cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.