Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van thuc toc snippets" » "van thuc code snippets", "va thuc toc snippets", "dan thuc toc snippets", "van thu toc snippets", "van thac toc snippets", "van thuc uoc snippets", "van thuc thuc 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: (((("van thuc 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: (((("van thuc toc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van thuc toc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van thuc toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.