Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thap su cong snippets" » "thap du cong snippets", "phap su cong snippets", "khap su cong snippets", "thap su cuong snippets", "thap sua cong snippets", "thap tu cong 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: (((("thap su cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thap su cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thap su cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thap su cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.