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