Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc tay cao snippets" » "luc tai cao snippets", "luc tam cao snippets", "luc tham cao snippets", "luc tao cao snippets", "luc tay co snippets", "luc toan cao 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 tay cao 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 tay cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc tay cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.