Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using code snippets" » "python using cfd snippets", "python using one snippets", "python using code slippers"
"hoc dan lap snippets" » "hoc phan lap snippets", "hoc dan luan snippets", "hoc dan lap slippers"

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: (((("hoc dan lap snippets") or ("python using code snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc dan lap snippets") OR ("python using code snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( hoc dan lap snippets ) or ( python using code snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc dan lap snippets") or ("python using code snippets"))) or ("locating bugs code snippets"))*.