Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan mac che snippets" » "han mac che snippets", "nhan ma che snippets", "nganh mac che snippets", "nhan may che snippets", "nhan cac che snippets", "nhan sach che 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 mac che 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 mac che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan mac che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan mac che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.