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