Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuu danh he snippets" » "cuu anh he snippets", "cum danh he snippets", "cau danh he snippets", "cuu danh het snippets", "cuu dan he snippets", "cuu hanh he 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 danh he 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 danh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuu danh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuu danh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.