Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cac doc cao snippets" » "cac doc code snippets", "cac toc cao snippets", "cac don cao snippets", "cac dac cao snippets", "cac hoc cao snippets", "cac do cao snippets", "cac doc dao 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: (((("cac doc 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: (((("cac doc cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cac doc cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac doc cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.