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