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