Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lua minh duc slippers" » "cua minh duc slippers", "lu minh duc slippers", "vua minh duc slippers", "lua minh duc slippery", "lua minh duc 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: (((("lua minh duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lua minh duc slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lua minh duc slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lua minh duc slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.