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