Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong toi do snippets" » "cong toi code snippets", "cong ti do snippets", "cong goi do snippets", "cong noi do snippets", "cong toi doi snippets", "cong toi da snippets", "cong toi di 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: (((("cong toi do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong toi do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong toi do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong toi do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.