Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhan dat cao snippets" » "nhan dat code snippets", "nhan dan cao snippets", "nhan vat cao snippets", "nhan dai cao snippets", "nhan dat cau snippets", "nhan dam cao snippets", "nhan dao cao 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 cao 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 cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhan dat cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dat cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.