Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ham dang co snippets" » "pham dang co snippets", "hai dang co snippets", "ha dang co snippets", "ham dong co snippets", "ham dung co snippets", "ham dang do 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: (((("ham dang co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ham dang co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ham dang co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ham dang co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.