Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bat du con snippets" » "bat dau con snippets", "bat hu con snippets", "bat cu con snippets", "bat duc con snippets", "bat dung con snippets", "bat dieu con 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 du con 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 du con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bat du con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bat du con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.