Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat van ho snippets" » "luan van ho snippets", "luat dan ho snippets", "luat va ho snippets", "luat van hoa snippets", "luat van hoc snippets", "luat 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: (((("luat 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: (((("luat van ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat van ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat van ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.