Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc va hoat snippets" » "luc va hoa snippets", "luc qua hoat snippets", "luc dan hoat snippets", "duc va hoat snippets", "tuc va hoat snippets", "loc va hoat 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 va hoat 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 va hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc va hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc va hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.