Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung vat da snippets" » "dung vat code snippets", "dung va da snippets", "dong vat da snippets", "dung dat da snippets", "dung vat va snippets", "dung vat de snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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 vat da snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung vat da snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung vat da snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung vat da snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.