Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dung chua xe snippets" » "dung cua xe snippets", "cung chua xe snippets", "dung nhua xe snippets", "dung chua xi snippets", "dung chuan he snippets", "dung chuan 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: (((("dung chua 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: (((("dung chua xe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung chua xe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung chua xe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.