Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan cac di snippets" » "nhan cach di snippets", "phan cac di snippets", "nhan mac di snippets", "nhan cac dai snippets", "nhan cac dia snippets", "nhan cac doi 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 cac di 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 cac di snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan cac di snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan cac di snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.