Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoc van che snippets" » "luoc can che snippets", "luoc va che snippets", "luc van che snippets", "luoc han che snippets", "luoc van chi snippets", "luoc van cho 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: (((("luoc van che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luoc van che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoc van che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoc van che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.