Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hung van cao snippets" » "phung van cao snippets", "nhung van cao snippets", "dung van cao snippets", "hung van dao snippets", "hung van bao snippets", "hung van cau 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: (((("python using java snippets") or ("hung van cao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("hung van cao snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hung van cao snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hung van cao snippets"))) or ("locating bug code snippets"))*.