Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhan dan doi snippets" » "nhan dan code snippets", "phan dau doi snippets", "gian dan doi snippets", "nhan tai doi snippets", "nhan dan hoi snippets", "nhan dan toi snippets", "nhan van doi 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 dan doi 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 dan doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhan dan doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dan doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.