Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung ti da snippets" » "nhung tri da snippets", "nhung thi da snippets", "nhung bi da snippets", "nhung toi da snippets", "nhung si da 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: (((("nhung ti 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: (((("nhung ti da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung ti da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung ti da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.