Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap ca can snippets" » "nhap cua can snippets", "nhap cap can snippets", "nhap ca dan snippets", "phap ca can snippets", "nhan ca can snippets", "nhat ca can 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: (((("nhap ca can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap ca can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap ca can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap ca can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.