Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat hieu boi snippets" » "dao hieu boi snippets", "dat tieu boi snippets", "rat nhieu boi snippets", "dat hieu bo snippets", "dat hieu moi snippets", "dat lieu boi 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 boi 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 boi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat hieu boi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hieu boi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.