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