Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua quoc cho snippets" » "luan quoc cho snippets", "luat quoc cho snippets", "cua quoc cho snippets", "lua nuoc cho snippets", "lua quoc cao snippets", "lua quoc co 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: (((("lua quoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua quoc cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua quoc cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua quoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.