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