Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan nam doc snippets" » "nhan tam doc snippets", "ngan nam doc snippets", "thanh nam doc snippets", "nhan nam duoc snippets", "nhan nam moc snippets", "nhan nam do 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 nam doc 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 nam doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan nam doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan nam doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.