Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phai va doan snippets" » "phi va doan snippets", "pham va doan snippets", "phap va doan snippets", "phai va doanh snippets", "phai van doan snippets", "phai va dan 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: (((("phai va doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phai va doan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phai va doan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phai va doan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.