Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc qua cham snippets" » "luc qua hai snippets", "luc qua cac snippets", "luc va cham snippets", "luc quan cham snippets", "luc cua cham snippets", "luc nua cham 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 qua cham 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 qua cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc qua cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc qua cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.