Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan canh toc snippets" » "van canh toc snippets", "dan cach toc snippets", "dan hanh toc snippets", "dan canh tac snippets", "dan dan toc snippets", "dan hanh tot 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: (((("dan canh toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan canh toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan canh toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan canh toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.