Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh vi cao snippets" » "hanh vi cao snippets", "anh va cao snippets", "anh ve cao snippets", "anh vu cao snippets", "anh vien cao snippets"
"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: (((("anh vi cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("anh vi cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh vi cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh vi cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.