Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trang do de snippets" » "trang o de snippets", "tang do de snippets", "trang de de snippets", "trang do ke snippets", "trang bo de snippets", "trang do le 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: (((("trang do de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trang do de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trang do de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trang do de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.