Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dat hieu hoi snippets" » "dat hieu code snippets", "dao hieu hoi snippets", "dat tieu hoi snippets", "rat nhieu hoi snippets", "dat hieu hoa snippets", "dat hieu moi snippets", "dat hieu hoc 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: (((("dat hieu 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: (((("dat hieu hoi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dat hieu hoi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hieu hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.