Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuoc ma dot snippets" » "hoc ma dot snippets", "duoc ma dot snippets", "thuoc va dot snippets", "thuoc da dot 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 ma dot 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 ma dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuoc ma dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuoc ma dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.