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