Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hieu cac toc snippets" » "hieu cac code snippets", "hieu luc toc snippets", "hieu va toc snippets", "hieu van toc snippets", "hieu cac toi snippets", "hieu cac nuoc snippets", "hieu cac thoi snippets"
"python using java snippets" » "python using data 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: (((("hieu cac toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu cac toc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hieu cac toc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu cac toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.