Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan ha can snippets" » "nhanh ha can snippets", "nhan hoa can snippets", "nhan va can snippets", "nhan hau can snippets", "nhan ha canh snippets", "nhan ha van 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 ha can 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 ha can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan ha can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan ha can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.