Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong doan le snippets" » "cong doan code snippets", "cong dan le snippets", "cong hoan le snippets", "dong doanh le snippets", "cong loan le snippets", "cong doanh ly snippets", "cong hoang le 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 doan le 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 doan le snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong doan le snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong doan le snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.