Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"from le doan snippets" » "from e doan snippets", "from als doan snippets", "from bee doan snippets", "from le dan snippets", "from ly doanh snippets", "from le hoang 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: (((("from le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("from le doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( from le doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("from le doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.