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