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