Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phai cua do snippets" » "thai cua do snippets", "hai cua do snippets", "phat cua do snippets", "phai cua dao snippets", "phai cua bo snippets", "phai cua co 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 cua do 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 cua do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phai cua do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phai cua do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.