Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than du cay snippets" » "than duc cay snippets", "toan du cay snippets", "han du cay snippets", "than dau cay snippets", "than tu cay 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: (((("than du cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than du cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than du cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than du cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.