Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran nhan vo snippets" » "tran nhat vo snippets", "tan nhan vo snippets", "tran han vo snippets", "tran nhan va snippets", "tran nhan mo snippets", "tran than vo 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: (((("tran nhan 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: (((("tran nhan vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran nhan vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran nhan vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.