Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu luc chu snippets" » "hieu luat chu snippets", "hieu qua chu snippets", "hieu luc chua snippets", "hieu luc cho snippets", "hieu luc thu 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 luc chu 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 luc chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu luc chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu luc chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.