Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan than hoc snippets" » "tan thanh hoc snippets", "tan tran hoc snippets", "ban than hoc snippets", "tan toan hoc snippets", "tan thai hoc snippets", "tan than doc 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 than 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: (((("tan than hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan than hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan than hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.