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