Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tang dan co snippets" » "tang dan code snippets", "tang van co snippets", "tung dan co snippets", "tang luan co snippets", "tang dan cho snippets", "tang dang co snippets", "tang danh co 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: (((("tang dan co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang dan co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tang dan co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang dan co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.