Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung hoc da snippets" » "dong hoc da snippets", "dung thuoc da snippets", "trung hoc da snippets", "dung hoc dan snippets", "dung hoc dai snippets", "dung hoc dat 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 ("dung hoc da snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dung hoc da snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dung hoc da snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dung hoc da snippets"))) or ("locating bug code snippets"))*.