Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung hon vo snippets" » "dung hon code snippets", "dung hong vo snippets", "dung hoc vo snippets", "dung con vo snippets", "dung hon so snippets", "dung hon bo snippets", "dung hon va 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: (((("dung hon vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung hon vo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung hon vo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung hon vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.