Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lon nam so snippets" » "bon nam so snippets", "loi nam so snippets", "lon lam so snippets", "lon nam sao snippets", "lon 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: (((("lon 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: (((("lon nam so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lon nam so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lon nam so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.