Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan che hoa snippets" » "han che hoa snippets", "phan che hoa snippets", "nhan nghe hoa snippets", "nhan che khoa snippets", "nhan che hoat snippets", "nhan che ho 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: (((("nhan che hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan che hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan che hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan che hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.