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