Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan gia co snippets" » "dan gian co snippets", "danh gia co snippets", "dan giai co snippets", "dan giau co snippets", "dan gia cong 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: (((("dan gia co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan gia co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan gia co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan gia co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.