Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc canh van slippers" » "luc anh van slippers", "luc can van slippers", "luc cach van slippers", "luc canh van slippery", "luc canh 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: (((("luc canh 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: (((("luc canh van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc canh van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc canh van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.