Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai phan ve snippets" » "thai phan ve snippets", "tai phan ve snippets", "hai pham ve snippets", "hai phan le snippets", "hai phan va snippets", "hai pha ve 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 phan ve 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 phan ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai phan ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai phan ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.