Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhung bac he snippets" » "nhung bai he snippets", "phuong bac he snippets", "nhung cau he snippets", "nhung bac ha snippets", "nhung cac he snippets", "nhung bac ho 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 bac he 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 bac he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhung bac he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung bac he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.