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