Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tang dan do snippets" » "tang dan code snippets", "tang van do snippets", "tung dan do snippets", "tang luan do snippets", "tang dang do snippets", "tang dan dao snippets", "tang doan do 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 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: (((("tang dan do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tang dan do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang dan do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.