Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan tap toan snippets" » "tan tap doan snippets", "tan tap quan snippets", "tan bai toan snippets", "toan tap toan snippets", "han tap toan snippets", "tan tat toan 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: (((("tan tap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan tap toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan tap toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan tap toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.