Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuc doi he snippets" » "thuat doi he snippets", "thuc dan he snippets", "thay doi he snippets", "thuc do he snippets", "thuc doi de snippets", "thuc moi he 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: (((("thuc doi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuc doi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuc doi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuc doi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.