Perhaps you should try some spelling variations:
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"thong su le snippets" » "thong tu le snippets", "thong cua le snippets", "thong qua le snippets", "thong vu le snippets", "thong su ve 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: (((("thong su le snippets") or ("python using data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thong su le snippets") OR ("python using data snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thong su le snippets ) or ( python using data snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thong su le snippets") or ("python using data snippets"))) or ("locating bug code snippets"))*.