Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau len ho snippets" » "dam len ho snippets", "dau tien ho snippets", "dau luan ho snippets", "dau len hoa snippets", "dau hen ho snippets", "dau den ho 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 ("dau len ho snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dau len ho snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dau len ho snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dau len ho snippets"))) or ("locating bug code snippets"))*.