Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhap cong da snippets" » "nhap cong code snippets", "phap cong da snippets", "phap chong da snippets", "phan cong da snippets", "nhap cong dan snippets", "nhap cong dac snippets", "nhap cong dau 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: (((("nhap cong da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap cong da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhap cong da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap cong da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.