Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi nhan con snippets" » "doi khang con snippets", "tri nhan con snippets", "hoi nhap con snippets", "doi nhan co snippets", "doi nhanh cong snippets", "doi phan cong 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: (((("doi nhan 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: (((("doi nhan con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi nhan con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi nhan con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.