Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc dai cu snippets" » "luoc dai cu snippets", "luc tai cu snippets", "duc dai cu snippets", "luc dai cua snippets", "luc dai tu snippets", "luc dai xu 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 dai cu 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 dai cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc dai cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc dai cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.