Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao doi cong snippets" » "dao doi song snippets", "dao noi cong snippets", "dao moi cong snippets", "dao do cong snippets", "dao voi cong 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 doi cong 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 doi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao doi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao doi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.