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