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