Perhaps you should try some spelling variations:
"cuu thi doan snippets" » "cuu thi code snippets", "cuu thai doan snippets", "cuu thi hoan snippets", "cuu thi loan snippets", "cau thi doan snippets", "luu thi doan snippets", "chu thi doan snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") or ("cuu thi doan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cuu thi doan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cuu thi doan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cuu thi doan snippets"))) or ("locating bug core snippets"))*.