Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc do o snippets" » "thuoc bo o snippets", "thuoc ho o snippets", "thuoc co o snippets", "thuoc do bo snippets", "thuoc dao o snippets", "thuoc so o 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: (((("thuoc do o snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuoc do o snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc do o snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc do o snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.