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