Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc da cua snippets" » "luc dai cua snippets", "luc va cua snippets", "luc ha cua snippets", "luc day cua snippets", "luc dan cua 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 da cua 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 da cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc da cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc da cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.