Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao thi cac snippets" » "do thi cac snippets", "dan thi cac snippets", "dang thi cac snippets", "dao thi cuc snippets", "dao tai cac snippets", "dao thi tac 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 thi cac 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 thi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao thi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao thi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.