Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mach cua can snippets" » "manh cua can snippets", "cach cua can snippets", "sach cua can snippets", "mach cua cac snippets", "mach cua ban snippets", "mach cua 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: (((("mach cua can 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 can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mach cua can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mach cua can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.