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