Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong vu van slippers" » "duong vu van slippers", "dong va van slippers", "dong tu van slippers", "dong vu van slippery", "dong vu van 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 vu van 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 vu van slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong vu van slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong vu van slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.