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