Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu tre cao snippets" » "cua tre cao snippets", "cau tren cao snippets", "cau treo cao snippets", "cuu te cao snippets", "cuu tre can snippets", "cuu tren cay snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("cuu tre cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuu tre cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu tre cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu tre cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.