Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan dac cua snippets" » "ban dac cua snippets", "gian dac cua snippets", "toan dam cua snippets", "tan dai cua snippets", "tan day cua snippets", "tan tac cua 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 dac cua 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 dac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan dac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan dac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.