Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan n2 chu snippets" » "phap n2 chu snippets", "phan ung chu snippets", "phan anh chu snippets", "phan n1 chu snippets", "phan n3 chu 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 n2 chu 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 n2 chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan n2 chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan n2 chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.