Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan mo cao snippets" » "nhan my cao snippets", "phan mo cao snippets", "nhap mon cao snippets", "nhan o cao snippets", "nhan do cao snippets", "nhan mo 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: (((("nhan mo cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan mo cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan mo cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan mo cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.