Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lieu van ho snippets" » "lieu va ho snippets", "hieu van ho snippets", "sieu van ho snippets", "lieu van hoa snippets", "lieu van hoc snippets", "lieu van hoe 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: (((("lieu van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu van ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lieu van ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.