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