Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc co dong snippets" » "luc o dong snippets", "luc cong dong snippets", "luc lao dong snippets", "luc cao dong snippets", "luc cho dong snippets", "tuc co dong 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 co dong 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 co dong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc co dong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc co dong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.