Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc quan do snippets" » "luc luan do snippets", "tac quan do snippets", "qua quan do snippets", "luc quan doi snippets", "luc quan doc snippets", "luc quang do 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 quan do 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 quan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc quan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc quan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.