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