Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van phan vu slippers" » "van phong vu slippers", "van thanh vu slippers", "luan phan vu slippers", "van phan tu slippers", "van phan va slippers", "van pham vu slippers", "van phan vu slippery", "van phan vu 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: (((("van phan vu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van phan vu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van phan vu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van phan vu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.