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