Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh ve da snippets" » "trinh ve code snippets", "trinh he da snippets", "trinh va da snippets", "trinh vi da snippets", "trinh ve dao snippets", "trinh ve dat snippets", "trinh ve dan 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: (((("trinh ve 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: (((("trinh ve da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh ve da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh ve da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.