Perhaps you should try some spelling variations:
"diep tinh sio2 snippets" » "diep tinh son snippets", "diep tinh sinh snippets", "diep tinh so snippets", "dien tinh sio2 snippets", "dieu tinh sio2 snippets", "diem tinh sio2 snippets", "diep tinh 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: (((("diep tinh 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: (((("diep tinh sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( diep tinh sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("diep tinh sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.