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