Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lam van hoe snippets" » "lam san hoe snippets", "nam van hoe snippets", "dam van hoe snippets", "lam van hoa snippets", "lam van hoc snippets", "lam van hieu 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: (((("lam van hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lam van hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lam van hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lam van hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.