Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai ngon doc snippets" » "thai nhon doc snippets", "tai ngan doc snippets", "sai gon doc snippets", "hai ngo duc snippets", "hai ngo dac 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 ngon doc 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 ngon doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai ngon doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai ngon doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.