Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc van toi snippets" » "thuc van toi snippets", "phuc va toi snippets", "chuc van toi snippets", "phuc van tai snippets", "phuc van thi snippets", "phuc van toan 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: (((("phuc van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc van toi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc van toi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc van toi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.