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