Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va moi tran slippers" » "va moi tren slippers", "va moi thanh slippers", "va moi trong slippers", "va mot tran slippers", "ve moi tran slippers", "va mo tran slippers", "va moi tran slippery", "va moi tran 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: (((("va moi tran slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va moi tran slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va moi tran slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va moi tran slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.