Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dich dung cu snippets" » "dinh dung cu snippets", "sach dung cu snippets", "duc dung cu snippets", "dich dung cua snippets", "dich dung co snippets", "dich dung cho 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: (((("dich dung cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dich dung cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dich dung cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dich dung cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.