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