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