Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat hieu loi snippets" » "dao hieu loi snippets", "dat tieu loi snippets", "rat nhieu loi snippets", "dat hieu moi snippets", "dat hien loi snippets", "dat hieu voi 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: (((("dat hieu loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat hieu loi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat hieu loi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hieu loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.