Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang van cho snippets" » "dang van cho snippets", "tang van cho snippets", "lang van cho snippets", "nang van chi snippets", "nang san cho snippets", "nang van chat 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 cho 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 cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang van cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang van cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.