Perhaps you should try some spelling variations:
"lan dao sio2 snippets" » "lan bao sio2 snippets", "lan cao sio2 snippets", "lan dao gioi snippets", "lanh dao sio2 snippets", "van dao sio2 snippets", "lan dau sio2 snippets", "lan dao 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: (((("lan dao 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: (((("lan dao sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan dao sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan dao sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.