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