Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc son tre snippets" » "lac son tre snippets", "luc sang tre snippets", "quoc son tre snippets", "luc son tren snippets", "luc soc tre snippets", "luc song tren 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: (((("luc son tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc son tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc son tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc son tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.