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