Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan dao chu snippets" » "phan dau chu snippets", "phan dai chu snippets", "phan day chu snippets", "phan dao phu snippets", "phan cao chu snippets", "phan dao cau 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 dao 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 dao chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan dao chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan dao chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.