Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sam cong cac snippets" » "dam cong cac snippets", "san cong cac snippets", "sat cong cac snippets", "sam cuong cac snippets", "sam cong tac snippets", "sam cong cau 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: (((("sam cong cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sam cong cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sam cong cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sam cong cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.