Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan luoc can snippets" » "dan quoc can snippets", "dai luoc can snippets", "dang quoc can snippets", "dan luc canh snippets", "dan hoc can snippets", "dan luoc dai 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: (((("dan luoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan luoc can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan luoc can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan luoc can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.