Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang dung co snippets" » "hoang dung co snippets", "hang cung co snippets", "dang dung co snippets", "hang dung cho snippets", "hang dung cong snippets", "hang dung cua 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: (((("hang dung 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: (((("hang dung co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang dung co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang dung co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.