Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc sang hoa snippets" » "lam sang hoa snippets", "luc canh hoa snippets", "duy sang hoa snippets", "luc hang hoa snippets", "luc nang hoa snippets", "luc hoang hoa 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 sang hoa 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 sang hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc sang hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc sang hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.