Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhat dan de snippets" » "nhat dan code snippets", "nhat danh de snippets", "nhat ban de snippets", "nhan dan de snippets", "nhat dan den snippets", "nhat dang de snippets", "nhat van de 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: (((("nhat dan de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat dan de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhat dan de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat dan de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.