Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung vinh mo snippets" » "dung vinh code snippets", "dang vinh mo snippets", "dung ninh mo snippets", "quang vinh mo snippets", "dung tinh mo snippets", "dung dinh moi snippets", "dung trinh mo 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: (((("dung vinh mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vinh mo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung vinh mo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vinh mo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.