Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat ba toan snippets" » "hat bai toan snippets", "hat bao toan snippets", "hat va toan snippets", "phat ba toan snippets", "hat ca 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: (((("hat ba 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: (((("hat ba toan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat ba toan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat ba toan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.