Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong voi nam slippers" » "dong von nam slippers", "dong hoi nam slippers", "dong doi nam slippers", "dong noi nam slippers", "dong loai nam slippers", "dong voi nam slippery", "dong voi nam grippers"
"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: (((("dong voi nam slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong voi nam slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong voi nam slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong voi nam slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.