Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang van co snippets" » "dang van co snippets", "tang van co snippets", "lang van co snippets", "nang van cho snippets", "nang ban co snippets", "nang san co 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: (((("nang van co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang van co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang van co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang van co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.