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