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