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