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