Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap hoc dan slippers" » "tap hop dan slippers", "tap hoa dan slippers", "ta hoc dan slippers", "tap hoc dan slippery", "tap hoc dan 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: (((("tap hoc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tap hoc dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap hoc dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap hoc dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.