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