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