Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc mon hoc snippets" » "luc moi hoc snippets", "luc son hoc snippets", "luc cong hoc snippets", "luc toan hoc snippets", "luc dong 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: (((("luc mon 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 mon hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc mon hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc mon hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.