Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong luoc su slippers" » "dong luc su slippers", "dong duoc su slippers", "dong quoc su slippers", "dong duoc sua slippers", "dong luoc su slippery", "dong luoc su 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 luoc su 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 luoc su slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong luoc su slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong luoc su slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.