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