Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan cao oc snippets" » "phan cao code snippets", "phan cac oc snippets", "phan co oc snippets", "phan cau oc snippets", "phan cao hoc snippets", "phan cao toc snippets", "phan cao ngoc 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: (((("phan cao oc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan cao oc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan cao oc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan cao oc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.