Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran han ho snippets" » "tran hanh ho snippets", "tran hoan ho snippets", "tran nhan ho snippets", "tran han cho snippets", "tran can ho snippets", "tran hen ho 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: (((("tran han ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran han ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran han ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran han ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.