Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mach cao cao snippets" » "mach cao code snippets", "mac ca cao snippets", "sach cap cao snippets", "mach lac cao snippets", "mach cao cap snippets", "mach bao cao snippets", "mach tao cao snippets"
"python using java snippets" » "python using data 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 cao cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mach cao cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mach cao cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mach cao cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.