Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"noi nam so snippets" » "doi nam so snippets", "voi nam so snippets", "nguoi nam so snippets", "noi nam sao snippets", "noi nam bo 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: (((("noi nam so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("noi nam so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( noi nam so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("noi nam so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.