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