Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu cuc do snippets" » "hieu luc do snippets", "hieu cac do snippets", "hieu cua do snippets", "hieu cuc du snippets", "hieu muc do snippets", "hieu cuoc doi 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 cuc do 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 cuc do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu cuc do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu cuc do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.