Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc son cap snippets" » "lac son cap snippets", "luc sang cap snippets", "quoc son cap snippets", "luc so cap snippets", "luc doan cap snippets", "luc dong cap 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 cap 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 cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc son cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc son cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.