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