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