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