Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doan tinh c snippets" » "doan hinh c snippets", "ban tinh c snippets", "quan tinh c snippets", "doan trinh c snippets", "doan tinh ca snippets", "doan tinh 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: (((("doan tinh c snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan tinh c snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doan tinh c snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doan tinh c snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.