Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"tra con cua snippets" » "tra cong cua snippets", "tra mon cua snippets", "ta con cua snippets", "tra co cua snippets", "tra dong 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: (((("tra con cua snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra con cua snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra con cua snippets ) or ( python using data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra con cua snippets") or ("python using data snippets"))) or ("locating bug code snippets"))*.