Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc nua hoc snippets" » "luc cua hoc snippets", "luc nhat hoc snippets", "luc luan hoc snippets", "luc nha hoc snippets", "luc ngua hoac 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: (((("luc nua 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: (((("luc nua hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc nua hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc nua hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.