Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dau hai con snippets" » "dai hai con snippets", "dau ha con snippets", "cau hai con snippets", "dau phai con snippets", "dau bai con snippets", "dau hai son 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 hai 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 hai con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dau hai con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dau hai con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.