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