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