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