Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi tru hoc snippets" » "noi tru hoc snippets", "doi thu hoc snippets", "doi trung hoc snippets", "doi tu hoc snippets", "doi tri 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: (((("doi tru hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi tru hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tru hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tru hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.