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