Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau cuoi con snippets" » "dam cuoi con snippets", "dau co con snippets", "dao cuoc con snippets", "dau cuoi co snippets", "dau nuoi con snippets", "dau cuoi cung 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: (((("dau cuoi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dau cuoi con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau cuoi con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau cuoi con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.