Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao phan oi snippets" » "co phan oi snippets", "cho phan oi snippets", "cac phan oi snippets", "cao phan hoi snippets", "cao phan moi snippets", "cao phan bi 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: (((("cao phan oi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao phan oi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao phan oi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao phan oi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.