Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tran quoc xe snippets" » "trung quoc xe snippets", "han quoc xe snippets", "tran duc xe snippets", "tran quoc te snippets", "tran quoc 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: (((("tran quoc xe 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 quoc xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tran quoc xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran quoc xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.