Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan cang te snippets" » "phan cong te snippets", "phan dang te snippets", "phan cung te snippets", "phan cang thi snippets", "phan mang ten 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 cang te 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 cang te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan cang te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cang te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.