Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung n2 doc snippets" » "vung n2 doc snippets", "dung nha doc snippets", "dung ung doc snippets", "dung n1 doc snippets", "dung n3 doc 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: (((("dung n2 doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung n2 doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung n2 doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung n2 doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.