Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat tu cong snippets" » "bat thu cong snippets", "bat te cong snippets", "bat tai cong snippets", "vat tu cong snippets", "bat hu cong snippets", "bat cu cong 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: (((("bat tu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bat tu cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat tu cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat tu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.