Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc dan vu slippers" » "hoc doan vu slippers", "hoc dan su slippers", "hoc dan va slippers", "hoc dan vu slippery", "hoc dan 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: (((("hoc dan 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: (((("hoc dan vu slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc dan vu slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc dan vu slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.