Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung me hoi snippets" » "dung me code snippets", "dung he hoi snippets", "dung de hoi snippets", "dung mo hoi snippets", "dung le hoi 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 me hoi 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 me hoi snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung me hoi snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung me hoi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.