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