Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc nhan dot snippets" » "doc nhanh dot snippets", "dac nhan dot snippets", "doi nhan dot snippets", "doc nhan dat snippets", "doc nhay dot snippets", "doc nhan dong 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: (((("doc nhan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc nhan dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc nhan dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc nhan dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.