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