Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh ke don snippets" » "trinh ke code snippets", "trinh ky don snippets", "trinh he don snippets", "trinh ve don snippets", "trinh ke dan snippets", "trinh ke do snippets", "trinh ke doc 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: (((("python using java snippets") or ("trinh ke don snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("trinh ke don snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( trinh ke don snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("trinh ke don snippets"))) or ("locating bug core snippets"))*.