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