Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"han anh co snippets" » "phan anh co snippets", "han danh co snippets", "nhan anh co snippets", "han anh so snippets", "han danh cho snippets", "han nganh co 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: (((("han anh 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: (((("han anh co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han anh co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han anh co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.