Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan chon co snippets" » "lua chon co snippets", "luan chinh co snippets", "luan chung co snippets", "luan chong co snippets", "luan con co snippets", "luan chon loc 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 chon co 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 chon co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan chon co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan chon co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.