Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi canh toc snippets" » "doi canh code snippets", "doi hanh toc snippets", "boi canh toc snippets", "do canh toc snippets", "doi canh tac snippets", "doi dan toc snippets", "doi hanh tot 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: (((("doi canh 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: (((("doi canh toc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi canh toc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi canh toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.