Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dap viec bot snippets" » "dap viet bot snippets", "lam viec bot snippets", "dap ve bot snippets", "dap viec mot snippets", "dap viec so snippets", "dap viec ban 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: (((("dap viec bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dap viec bot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dap viec bot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dap viec bot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.