Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc han mot snippets" » "luc nhan mot snippets", "luc ha mot snippets", "duc han mot snippets", "luc hanh mot snippets", "luc thanh mot snippets", "luc khoan mot 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: (((("luc han mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc han mot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc han mot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc han mot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.