Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan hieu ke snippets" » "van hieu ke snippets", "phan kien ke snippets", "gian hieu ke snippets", "phan hieu kem snippets", "phan chieu ke snippets", "phan hieu ky 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 hieu ke 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 hieu ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan hieu ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hieu ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.