Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai toan noi snippets" » "bai toan noi snippets", "hai tan noi snippets", "hach toan noi snippets", "hai toan roi snippets", "hai toan toi snippets", "hai toan hoc 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: (((("hai toan noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai toan noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai toan noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai toan noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.