Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tay cao snippets" » "dong tai cao snippets", "dong tam cao snippets", "dung tay cao snippets", "dong tao cao snippets", "dong tay co snippets", "dong toan cao 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: (((("dong tay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tay cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tay cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tay cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.