Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phai thu da snippets" » "phap thu da snippets", "pham thu da snippets", "hai thu da snippets", "phai thu dac snippets", "phai thu dai snippets", "phai thu dau 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: (((("phai thu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phai thu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phai thu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phai thu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.