Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cau cua toan snippets" » "cau cua code snippets", "cau cuu toan snippets", "cau xuan toan snippets", "cau cua thanh snippets", "cau qua toan snippets", "ca cua toan snippets", "cu cua toan 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: (((("cau cua toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau cua toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cau cua toan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau cua toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.