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