Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luan danh da snippets" » "luan danh code snippets", "luan thanh da snippets", "luan van da snippets", "luan nang da snippets", "luan danh dau snippets", "luan dan da snippets", "luan danh ca 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: (((("luan danh 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: (((("luan danh da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luan danh da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan danh da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.