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