Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"moi cong can snippets" » "noi cong can snippets", "voi cong can snippets", "tai cong can snippets", "moi cong san snippets", "moi cong tan snippets", "moi cong dan 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: (((("moi cong can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi cong can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi cong can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi cong can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.