Perhaps you should try some spelling variations:
"tang cuoc sio2 snippets" » "trong cuoc sio2 snippets", "tang cuong sio2 snippets", "tranh cuoc sio2 snippets", "tang cao sio2 snippets", "tang cuoc sio2 slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("tang cuoc sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tang cuoc sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tang cuoc sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tang cuoc sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.