Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong nhoi do snippets" » "cong nhoi code snippets", "cong nho do snippets", "cong noi do snippets", "cong hoa do snippets", "cong nguoi do snippets", "cong nhoi cho snippets", "cong thoi dao 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 nhoi 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 nhoi do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong nhoi do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nhoi do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.