Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan thuc da snippets" » "nhan luc da snippets", "dan thuc da snippets", "toan thuc da snippets", "nhan thuc dan snippets", "nhan thuc day snippets", "nhan thuc dia 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 thuc da 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 thuc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan thuc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan thuc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.