Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao cuu toan snippets" » "dao cuu hoan snippets", "dao cua toan snippets", "dao huu toan snippets", "dao cau toan snippets", "dao chu toan 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: (((("dao cuu toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dao cuu toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao cuu toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao cuu toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.