Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao chat vu slippers" » "cao chat va slippers", "cao nhat vu slippers", "cao chat vo slippers", "cao chat vu slippery", "cao chat 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: (((("cao chat 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: (((("cao chat vu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cao chat vu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.