Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat cong hoa snippets" » "chat cong hoa snippets", "bat cong hoa snippets", "ha cong hoa snippets", "hat dong hoa snippets", "hat dong hoc snippets", "hat hang hoa 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 cong hoa 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 cong hoa snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat cong hoa snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat cong hoa snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.