Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac dai do snippets" » "cac dan do snippets", "cac bai do snippets", "can dai do snippets", "cac dai so snippets", "cac dai de snippets", "cac dai o 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: (((("cac dai 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: (((("cac dai do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac dai do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac dai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.