Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"bua cua toan snippets" » "bua cua code snippets", "bua cuu toan snippets", "bua xuan toan snippets", "bua cua thanh snippets", "qua cua toan snippets", "lua cua toan snippets", "xua 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: (((("bua 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: (((("bua cua toan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( bua cua toan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bua cua toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.