Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban len hoa snippets" » "ban le hoa snippets", "ban den hoa snippets", "ban lan hoa snippets", "ban yen hoa snippets", "ban dien hoa snippets", "ban tien hoa 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: (((("ban len hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban len hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban len hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban len hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.