Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai phap hoc snippets" » "hai pham hoc snippets", "hai phan hoc snippets", "hai thap hoc snippets", "hai phap hoan snippets", "hai phap mo snippets", "hai phap han 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: (((("hai phap hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai phap hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai phap hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai phap hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.