Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mach cua noi snippets" » "manh cua noi snippets", "cach cua noi snippets", "sach cua noi snippets", "mach chua noi snippets", "mach cua hoi snippets", "mach cua moi 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: (((("mach cua noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mach cua noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mach cua noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mach cua noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.