Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mac tu cao snippets" » "mac tu code snippets", "tac tu cao snippets", "cac tu cao snippets", "bac tu cao snippets", "mac cu cao snippets", "mac tu cac snippets", "mac vu 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: (((("mac tu 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: (((("mac tu cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mac tu cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mac tu cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.