Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung cau dk snippets" » "chung cu dk snippets", "nhung bai dk snippets", "nhu cau dk snippets", "nhung cau do snippets", "nhung cau de 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 cau dk 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 cau dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung cau dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung cau dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.