Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan mo he snippets" » "nhan my he snippets", "phan mo he snippets", "nhap mon he snippets", "nhan moi he snippets", "nhan mon he snippets", "nhan mot he 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 mo he 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 mo he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan mo he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan mo he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.